Whales are miraculous sea creatures that have some of the largest offspring in the animal kingdom, including blue whale ...

A beluga whale’s weight, muscle and fat can indicate its chances of survival and reproductive success, but a changing environment might be contributing to a decline in body makeup for the St ...

“We're seeing a transformation from high-fat plankton that leads to things like beluga whales and polar bears to low-fat plankton that end up with the final part of the food chain being jellyfish.

Arctic cod, a high-fat fish that is key in beluga diets, is diminishing, said beluga expert Pierre Richard of the Northern Studies Center in Churchill and author of three whale books. But he said ...