A young humpback whale that died, presumably, after it became trapped in a commercial mussel-farming line off Long Beach, Ca.

Recent declines in North Pacific humpback whale reproduction and survival of calves highlight an urgent need to understand how mother-calf pairs expend energy across their migratory cycle.

A female Humpback whale with her calf (Illustrative ... including posing risks to both the animals and the humans. Iceland is home to numerous whale-watching sites throughout the country ...