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My name is Zoya. Here i tell about animals.

10/02/2023

No animals are immune to the effects of climate change, but some are significantly more sensitive than others.

They may live in a habitat undergoing severe upheaval, or they may just lack the adaptability to keep pace, even if their environment is comparatively stable.

But as humans struggle to rein in climate change, we also have a duty to help other animals survive the crisis we've created.

While this means striving to save hard-hit individual species, it also means considering which types of animals are most and least vulnerable to the effects of climate change.

In that spirit, a team of European researchers examined records for 157 species of terrestrial mammals, looking for links between yearly weather anomalies, population growth rates, and species-level life history.

08/02/2023

Cats have a reputation for being aloof, and that reputation is only going to get stronger after scientific results from Japan revealed the true extent to which they have been ignoring us all this time.

While dog owners have to do very little to get the eager-to-please attention of their good boys and girls, cats are something else entirely. Dogs can be trained to understand lots of words we say to them; cats sometimes seem barely aware of our existence.

But what are the limits of our ability to vocally communicate with domestic cats (Felis catus)? There's a lot of research looking into the way dogs comprehend human vocalisations, but until now, the ability of cats to interpret human speech has been relatively little explored by scientists.

To find out if cats can discriminate between their names and other kinds of words people say to them, researchers from the University of Tokyo conducted a series of experiments with 78 felines.

The cat cohort came from both ordinary households and a cat cafe, and the researchers sought to test the hypothesis that cats might recognise their name as different from other words, on the basis it could be a stimulus term associated with various rewards, such as food, petting, and play.

06/02/2023

For the first time, neuroscientists at Indiana University (IU) have demonstrated that non-human animals can mentally replay past memories.

That's a pretty spectacular finding - but it could also potentially help out researchers looking to develop new treatments for memory loss that happens in Alzheimer's disease and similar afflictions.

"The reason we're interested in animal memory isn't only to understand animals, but rather to develop new models of memory that match up with the types of memory impaired in human diseases such as Alzheimer's disease," said lead researcher, neuroscientist Jonathon Crystal from IU.

Although scientists already knew that rats could remember multiple unique episodes, until now it was unknown whether they could replay a string of events in order.

As a result, the discovery could shift the current paradigm for Alzheimer's memory loss research.

06/02/2023

nimal studies in science are experiments that control an animal's behaviour or physiology for study, often to serve as a model for human biology where testing on humans is impractical or unethical.

The species or classification of animals used in testing largely depends on the goal of the experiment.

For example, zebrafish are quick to breed, easy to house, and transparent as embryos - but they also carry 70 percent of the genes found in humans. All this makes them suitable for studies on human disease and embryological development.

Rodents have a long history of being used for science experiments, and today make up around three quarters of all animal subjects in testing. Easy to raise and breed, their mammalian physiology and genomes overlap even more considerably with those of humans, making them suitable models for studying behaviours, toxicology, and the effects of medical treatments.

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