Mammals

NAIROBI, Kenya - Sharon Brown was hiking with family and her 1-year-old daughter in a Kenyan nature reserve when suddenly their unarmed guide froze in his tracks.

NAIROBI, Kenya - A lone elephant charged out of the brush as an American family was hiking near Mount Kenya and trampled to death a mother and the 1-year-old daughter she held in her arms, officials said Wednesday.

SAN FRANCISCO - Two mysteries surround a huge herd of sea lions that were hanging out on a pier in San Francisco Bay: Why did so many show up, and why did so many leave at once? Just last month, Pier 39, famous in San Francisco for its sea lions and the throngs of tourists they attract, was groaning under the weight of more than 1,500 of the animals.