Video captured near a Northern California beach shows the first scientific documentation of coyotes preying on harbor seal pups. Researchers at The University of California Santa Cruz captured ...

An aquarium was treating the seal pup for dehydration, malnutrition and other health issues before its condition declined past the point of no return.

But at his age, she says, he should be closer to 100 pounds (45.3 kilograms). Seal pups, she says, usually wean from their mothers at three to four weeks old, at which point they fend for themselves.