Scientists have documented same-sex behavior in many animals. Learn what it means, how it varies, and why human labels can mislead.

Embryonic germ layers are the fundamental organizing principle in animal development. They provide the structural basis from which tissues and organs arise. During early embryogenesis, cells divide to ...

When HHMI Investigator Amita Sehgal started studying sleep 25 years ago, the topic elicited a yawn from most biologists. "In ...

A resident in a 55+ no-pet community is frustrated by the influx of emotional support animals. An attorney explains why condo ...

For humans, feces are last on the list of things we’d place near our mouth. In the animal world, that reaction does not ...

The Queen gets to tell everyone what to do, and she chooses a few males to breed with, we believe,” says Kerns. “However, she can have one of the largest litters of any mammals, over 30 babies at a ...

New research finds that sleep is essential for protecting brain mitochondria by transferring toxic metabolic waste from neurons to glial cells for disposal.

The World Health Organization in 2023 advised against using nonsugar sweeteners for weight control due to a lack of long-term ...

Every living organism has its own genetic "blueprint": the source code for how it grows, functions and reproduces. This ...

A major international study shows that increasing a naturally occurring molecule can help restore memory in animal models of ...

Why major in animal science? Be part of solving one of humanity’s most critical grand challenges – the global demand for food and fiber. With the population expected to grow by 2.3 billion by 2050, ...

Psychedelics are psychoactive substances that trigger unusual mental states, also referred to as "trips," altering the ...