Science, ethics and politics spark clash at a House hearing on using fetal tissue for critically important medical research...

A new study finds that city frogs and rainforest frogs don't sing the same tune...

Scientists have developed a video simulation of how whales become entangled in fishing lines, and say the technology could help lead to new and safer gear designs...

A study of polar bears in the Chukchi Sea between Alaska and Russia finds that the population is thriving for now despite a loss of sea ice due to climate change...

'Castration-free' pigs and hornless dairy cows are the farm animals being brought to life by a gene-editing company...

Big studies reveal mixed results on who does and does not benefit from taking fish oil or vitamin D...

A Louisiana biologist is in heady company these days, honored by having a newly identified species of snake named after him...

Massachusetts man who police dubbed the "Brazen Botanist" after he was captured on surveillance camera stealing plants from a porch pleads guilty...

A judge has issued a temporary protective order to keep a Lake Tahoe activist away from a state bear biologist who says the woman stalked her during a long-running dispute over the capture of nuisance...

A lawsuit making its way through federal court Alaska will decide whether Pacific walruses should be listed as a threatened species, giving them additional protections...