Gloger’s Rule, first proposed in 1833, suggests animals in warm and humid environments often develop darker pigmentation. Darker feathers and fur contain melanin, which can strengthen structures and ...

This phenomenon provides valuable insight into climate change and its impact on evolution. There are exceptions to Bergmann’s rule, such as small burrowing animals that can change their microclimates ...

The US Food and Drug Administration (FDA) has published a new draft guidance intended to assist industry with developing products under the agency's so-called "Animal Rule," a regulatory pathway ...

When it comes to the law, words like “humanely” and “geriatric” are loadedso loaded that North Carolina’s proposed euthanasia rules have become snagged in semantics, languishing for more than a year.

US pharmaceutical regulators have granted approval to GlaxoSmithKline's raxibacumab, a monoclonal antibody that is among the only products-and the first biologic product-to be approved through the US ...

Add Yahoo as a preferred source to see more of our stories on Google. Pesquet's parrot (Psittrichas fulgidus) The only member of its genus, and its genus is the only member of the subfamily ...

Pesquet's parrot (Psittrichas fulgidus) The only member of its genus, and its genus is the only member of the subfamily Psittrichadinae. It is endemic to hill and montane rainforest in New Guinea© ...