Related topics: brain

The Paleozoic diet: Why animals eat what they eat

In what is likely the first study to look at how dietary preferences evolved across the animal kingdom, UA researchers looked at more than a million species, going back 800 million years. The team reports several unexpected ...

An 88 percent decline in large freshwater animals

Rivers and lakes cover just about one percent of Earth's surface, but are home to one third of all vertebrate species worldwide. At the same time, freshwater life is highly threatened. Scientists from the Leibniz-Institute ...

Cute marsupial had a fierce fossil relative

Short-tailed opossums are cute little marsupials which live in South America, but a new discovery shows they had a fierce fossil relative.

Frogs find refuge in elephant tracks

Frogs need elephants. That's what a new WCS-led study says that looked at the role of water-filled elephant tracks in providing predator-free breeding grounds and pathways connecting frog populations.

Color vision found in fish that live in near darkness

An international team of researchers discovered a previously unknown visual system that may allow color vision in deep, dark waters where animals were presumed to be colorblind. The research appears on the cover of the May ...

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