Choose your weapon: How animals got their tusks, horns, and antlers. Location and lifestyle seem to sway whether a species evolves mouth weapons, like tusks, or head weapons, like antlers and horns.

From well-known creatures like swans and sea otters to more exotic species such as saddleback clownfish and skylarks, there are "S"-named mammals, birds, reptiles, fish and more. Whether they swim, ...

If you’ve never heard of any animals that begin with the letter ‘X,’ you may be shocked to see that there isn’t just one, ...

Mountain goat. Cute ranking: 3 Fear factor: 5 (can be pushy) What they are: Mountain goats are larger than domestic goats, with short horns, beards, stocky front shoulders and a shaggy white coat ...

Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Kate W. Cassidy Foundation, Charles Rosenblum, Kathy Chiao and Ken … ...

GMO Bust. To date, GMO food animals have been a complete bust. After the first mice genetically engineered with viral DNA appeared in the 1970s, a parade of other modified animals followed ...

Rhinos’ Horns Were Cut to Thwart Poachers. After, They Didn’t Go Out Much. New research shows a conservation strategy can disrupt the animals’ social networks.