Researchers analyzing photos of Southern right whales say they are 25% thinner than in the 1980’s. The lack of prey around Antarctica due to climate change causes the whales to become thinner, which puts their pups at high risk. Because of that risk, the whales are also having fewer pups.
Photo by: https://commons.wikimedia.org/wiki/File:Southern_Right_Whale_%28Eubalaena_australis%29_%2816358018502%29.jpg