A study suggests menopause gives an evolutionary advantage to some whales. The findings could offer clues about menopause in ...

However, size alone doesn't make sperm whales immune to becoming prey themselves. Their main foes are killer whales, while ...

Colorado wildlife authorities have ended their search for mountain lions along a hiking trail where a woman was killed in an ...

With roughly 45 teeth, each up to 10cm long and 4cm wide, orcas are perfectly engineered for ripping and tearing prey. These ...