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... A small octopus on the seafloor was busy manipulating two halves of a discarded coconut shell. The researcher assumed the animal was going to hide inside one of them. Which would have been ordinary. Octopuses hide inside things constantly. Empty shells, bottles, pipes, anything with a cavity ...

What the octopus did instead was stack the two shell halves like nested bowls, position itself on top of them, extend its arms rigidly around the outside, and walk away across the sand carrying the whole assembly with it ...

There is no immediate benefit to the animal while the shells are being carried. Whatever benefit they provide arrives later, once the octopus has stopped moving.

At the destination, the animal inverts the top shell over the bottom one, climbs inside the resulting sphere, and pulls the closure shut around itself, leaving only a small gap for water flow. The two shell halves, now assembled, function as a small hardened chamber inside which the otherwise-defenceless octopus is completely protected from view and from most physical attack. When the animal decides to move again, it disassembles the shelter, re-stacks the halves, and stilt-walks away ...

The specific reason the coconut behaviour has been treated as tool use, rather than as ordinary shelter use of the kind hermit crabs perform every day, sits in the details of how the shells are handled. A hermit crab lives inside its shell continuously. The shell is part of its ongoing life. The veined octopus does something different. It picks up the shell halves at one location. It carries them, at real energetic cost and with no immediate benefit, to somewhere else. It assembles them into a functional shelter only at the point where the shelter is actually needed. Which means the animal is, on the standard definition operating in the cognitive literature, using foresight. It is acquiring an object now for a benefit it anticipates receiving later ...

The small pink-veined octopus ... carrying its little portable house, continues to disturb the previously comfortable assumption that this kind of behaviour belonged only to warm-blooded animals with backbones.

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Family photo: parenting in the animal kingdom | The Narwhal

Doting mates, coddling parents and a touch of tough love; the animal kingdom has a lot to teach us about rearing young.

As a wildlife photographer for 14 years, I’ve had the chance to see these parents in action, and feel the loss of young left to fend for themselves.

I’ve spied a Cooper’s hawk, watching closely as its parents hunt, so it can one day feed its own family. I’ve seen an eagle drop a fish into a river for an eaglet, when their own angling skills weren’t yet up to snuff.

Perhaps the most relatable scene was a worn out male fox, taking an afternoon nap in the grass, as his kits rough-housed nearby.

From the fields, rivers and skies of Ontario, here are some of my favourite family portraits.

A Cooper's hawk flies from a tree with a small branch in its talons

As they mature, the eyes of Cooper’s hawks change colour from brown to orange to red. A pair has been hunting in the woods behind my apartment for the past few years, and last year they were joined by a hatchling.

A Cooper's hawk sits on a branch, looking at the camera

A Cooper's hawk with a brown-feathered back flies from a branch

A young Cooper's hawk sits on a branch

The young Cooper’s hawk spends time watching the adults dart between tree branches to capture mourning doves, mice and even squirrels. This is a skill it will need to survive.

A kingfisher flies in front of a rock wall with a small fish in its beak

In the seven years I’ve been visiting the Nith River in Ayr, Ont., belted kingfishers have nested in a sandbank. When there are young in the nest, the adult male is busy delivering fish and crustaceans to them. Often he will perch on a nearby tree before deciding to enter the nest — a security precaution, to keep their location hidden from predators.

A young sandhill crane and two adults fly in front of trees

Two sandhill crane couples I know of return to their nesting areas south of Cambridge, Ont., each spring. Both pairs laid eggs in 2024. One pair’s nest was flooded and abandoned, but this other couple successfully raised a young one, called a colt. They forage close to the nest when the colt is young, but it will eventually be strong enough to fly with its parents.

A cluster of sandhill cranes gather around a small creek through farmers fields

Each December, sandhill cranes, both young and old, gather in fields along the shore of Lake Erie for migration, although some will remain in Ontario through the winter.

Deer families traditionally include a doe and her offspring from recent years, and they’ll sometimes join with others to form a larger herd. One winter, while wandering across a path, I had the feeling I was being watched. When I turned around I spotted this doe with two fawns.

Three deer stand on a snowy trail

Another mother and fawn approach the Grand River in Brantford, Ont., for a drink. I would often see them crossing the river here.

A mother and baby deer stand at the edge of a lake with purple flowers and forest behind them

A peregrine falcon with a tag on its leg flies towards the camera

Peregrine falcons are the world’s fastest animal, using their roughly 300-kilometre-per-hour flight speed to capture birds much larger than themselves. A pair took up residence on the roofs of two churches in downtown Cambridge, Ont., in 2023 and 2024. They were attracted no doubt by an abundant supply of pigeons and gulls close by.

A peregrine falcone swoops down from a rooftop under blue sky

A peregrine falcon takes off from a rooftop with a partially eaten rodent in its talon

In the spring of 2024, the pair were joined by one of their offspring, seen on the left, which noisily chased the adults whenever they caught a pigeon. I noticed the adults didn’t like to share, but the young one would feed on scraps until her hunting skills were perfected.

A young black bear peeks out from behind a tree

Black bear cubs normally remain with their mothers for roughly a year and a half. This cub was foraging in the woods surrounding Killarney, Ont., with no siblings and no mother in sight. There was an extraordinarily high number of orphaned cubs that year and the Ontario Ministry of Natural Resources couldn’t possibly rescue all of them. A weight limit of 15 kilograms was set, with cubs believed to be below that number targeted for capture and care at a sanctuary. After sharing my photos with one of the ministry’s bear technicians, this one was deemed to be a healthy weight with the potential to survive the winter on its own. A few weeks later I was told by locals they had seen two cubs scavenging at the Killarney town dump. Hopefully, this one made it through the winter.

A bald eagle swoops down while one eagle watches on and a young one screams from the nest

In spring, an adult female bald eagle lays her eggs in a nest constructed with moss, twigs and tree branches snapped from nearby trees. She spends up to 35 days on the eggs, only occasionally getting relief from her mate to stretch her wings — always in the vicinity of the nest. The adult male is the constant provider, delivering food to the nest. When the eggs hatch, his hunting activity is frantic, and the eaglets quickly grow.

From what I’ve seen, each year, one of the fledglings will remain dependent upon the adults for food, even after his or her siblings have left the territory to fend for themselves.

A bald eagle flies low over the water, with a splash below its talons where it picked up a fish

Adults will continue to feed this eaglet, dropping food in the vacated nest or on tree branches close to the nest. Once I watched the adult male drop an enormous northern pike into the river below a begging eaglet. It was an illustration of what good parents these eagles are.

Am adult eagle feeds a young eagle beak to beak

A young moose with patch of fur missing on its back walks across a paved road

A cow moose is a devoted mother and will care for her calf throughout most of its first year — but after that, tough love kicks in. This solitary calf photographed in May 2024 has, in all likelihood, been cast out by its mother so she can prepare to birth another calf.

An adult great horned owl sits on a branch, surrounded by shrubbery, looking straight at the camera

Over a few weeks of observation, I saw this male great horned owl bring squirrels, birds and half-eaten rabbits back to feed both his mate and one owlet, which was hidden in the trees. The adult waited for me to back away before taking the meal to his offspring, likely to keep its location secret.

A young great horned owl perches on a tree branch, looking straight at the camera

The young one was reliant upon its parents as it dared to only fly short distances between neighbouring trees.

A night heron balances on a stick over water

Black-capped night herons fish along the edges of ponds and rivers. This adult night heron preferred hunting for small fish in the shadows along the Speed River, in Cambridge. Her two offspring have learned to hunt from their mother, but found it easier near a dam on the river where fish might gather.

Two night herons sit on sticks above clear glass water

Over time the young herons will lose their brown markings and eventually take on the appearance of an adult — white breast, black-capped head and wings.

While his mate was tucked away in a den giving birth and then caring for the tiny pups, the adult male coyote was the sole provider for his family.

A coyote's head pops up above tall grass

Although I suspected the location of their den, near Paris, Ont., I kept my distance. After a couple of months of parental supervision, the three pups began venturing out and exploring the area.

Young coyotes walk down a gravel road

As the pups grew in size, they also answered the calls of their parents to meet down by the Grand River.

A young coyote crosses a gravel road

A kestrel flies over dry grass

Kestrels are the smallest member of the North American falcon family. Fully grown, they are about the size of a mourning dove. Over the month of April 2022, this adult female became used to me standing at the side of the road photographing her each evening as she hunted insects and mice.

A kestrel flies over dry grass

I didn’t see her over the following months and realized she was probably nesting somewhere. When she did eventually return it was with three young ones, none of which were as bold as her. They kept their distance.

A young fox sits in the grass and peers at the camera

A young fox looks back at the camera while standing in grass

Two young foxes play in the grass

For much of 2020, a red fox could be seen hunting behind my apartment building. In the summer and fall, two kits turned up, often playing together. Feeding the growing kits was a lengthy and apparently tiring process for the adult male, who would regularly take a 20-minute afternoon nap in the grass undisturbed by the sound of my camera clicking away.

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PDF report

Thanks to @TheTechnician27@lemmy.world for the quality source links

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The statue was officially unveiled on April 3 in Siem Reap province, in the presence of First Vice President of the Cambodian Mine Action Authority Ly Thuch at the headquarters of APOPO.

Speaking at the ceremony, Senior Minister Ly Thuch said that for many years, some Cambodians have lived on land contaminated with unexploded ordnance, facing constant danger. Magawa’s work, he said, significantly reduced those risks and enabled communities to safely restore their livelihoods.

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"More than 100 mines and explosive remnants of war have been detected through Magawa’s work, allowing children to walk safely, farmers to cultivate freely, and communities to rebuild without hesitation,” Thuch said.

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Thuch added that Magawa’s legacy reflects the dedication of APOPO, which has introduced innovative approaches to mine action in Cambodia. It also highlights the collective efforts of mine action operators, national institutions, partner countries, and development organizations that have supported Cambodia over the years.

Magawa, originally from Tanzania, was trained by the Belgian nonprofit APOPO. According to the organization, he helped clear more than 225,000 square meters of land during his five-year career, the equivalent of about 42 football pitches. He was deployed to Siem Reap in 2016, where he began his operational work.

Over a stellar five-year career, Magawa sniffed out 71 landmines and 38 unexploded ordnances in Cambodia, earning the prestigious gold medal from the People’s Dispensary for Sick Animals in 2020.

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After retiring in 2021, Magawa passed away in 2022, leaving behind a legacy of lifesaving work.

Cambodia has remained one of the world’s most heavily mined countries, with landmines and explosive remnants of war still threatening communities after decades of conflict.

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cross-posted from: https://lemmy.world/post/45077014

Author: Antonio J. Osuna-Mascaró, Alice M. I. Auersperg

Source

CC BY-SA 4.0

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An oldie but a fitting goodie

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About a decade ago, a baker in a small mountainous village in southern Austria noticed his cow doing something unusual. When Veronika had an itch, she would grab a stick in her mouth and use it to scratch her body. Over the years, the brown bovid’s technique improved. She could pick up objects as large as a broom or rake and move them around with her prehensile tongue, changing their length and orientation to ensure the best possible scratch.

The behavior isn’t just a clever trick: It’s the first documented case of tool use in cattle, scientists report today in Current Biology. And, it turns out, one of Veronika’s skills has only been seen in humans and chimpanzees.

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Cows are not usually credited with thinking on the hoof. They eat, they chew, they stand in fields performing an activity that may look like contemplation but is generally written off as digestion.

They are not typically thought to plan, let alone solve problems. A new study suggests we may have underestimated them.

The research describes what experts claim is the first documented case of flexible, multi-purpose tool use in cattle, observed in a cow named Veronika.

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Veronika is a Swiss brown cow kept not for milk or meat but as a pet by Witgar Wiegele, an organic farmer and baker in Austria. More than a decade ago he noticed her using a long-handled brush, holding it in her mouth to scratch awkward parts of her body.

When video footage of this behaviour reached Alice Auersperg, a cognitive biologist at the University of Veterinary Medicine, Vienna, it struck her as unusual, largely because Veronika used the brush in different ways to scratch different parts of her body.

“It was immediately clear that this was not accidental,” Auersperg said. “This was a meaningful example of tool use in a species that is rarely considered from a cognitive perspective.”

Auersperg and her colleague Antonio Osuna-Mascaró conducted a series of trials. They placed a long-handled brush on the ground and recorded how Veronika used it.

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When scratching broad, thick-skinned regions such as her back or rump, Veronika tended to use the bristled end, applying it with sweeping, forceful movements. When targeting softer, more sensitive areas of her lower body, she switched to using the handle to scratch herself, moving more slowly.

Because Veronika directs tools at her own body, researchers describe this as egocentric tool use, which is usually regarded as less complex than tool use aimed at external objects. Even so, flexible, multi-purpose use of a single tool is rare. Outside humans, it has previously been demonstrated convincingly only in chimpanzees, the researchers say in their paper.

They wrote in a study published in the journal Current Biology that the findings “invite a reassessment of livestock cognition”.

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The researchers suspect that Veronika’s life circumstances have played a role in the emergence of this behaviour. Most cows do not reach her age and they are rarely given the opportunity to interact with a variety of potentially useful objects.

Her long lifespan, daily contact with humans, and access to a rich physical landscape probably created favorable conditions, they said. If that is true, there may be nothing very exceptional about Veronika, other than the opportunities she has been given to exercise her brain.

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