This week's featured species looks like it was ripped out of the sci-fi classic Aliens! Meet the Viper Dogfish!
Sharks have been around for 450 million years, but they haven't always looked as they do now. This week's Featured Species highlights one of the earliest modern shark forms to be found in the fossil record: the Broadnose Sevengill Shark.
This week is going to the dogs... the Spiny Dogfish that is! Spend some time with one of the smaller species of shark who can teach us an important lesson about population management!