The female harbor porpoises are generally larger than the males and weigh around 168 pounds while the males are around 134 pounds. They are dark gray above with speckled sides and lighter beneath.

Grey seals hunt the harbor porpoises and eat them. So it's not easy being a harbor porpoise these days." Lives close to the coast. Even though the harbor porpoise is part of the whale family, ...

Porpoises, in contrast, are less likely to have close encounters with humans. (No drama, ... dark gray color and signature lack of a dorsal fin, which sets it apart from its dolphin relatives.

Gray seals hunt the harbor porpoises and eat them. So it's not easy being a harbor porpoise these days," she says. Discover the latest in science, tech, and space with over 100,000 subscribers who ...