Human-made noises in the ocean environment can hurt whales and other marine life. Here's why it's a problem and what we can do about it.

Fish (and many marine invertebrates) don't have lungs. In this edition of “Ask a Marine Biologist,” Dr. David Shiffman explains how gills work.

In this edition of “Ask a Marine Biologist,” Dr. David Shiffman discusses the importance of predator conservation.

The latest "Ask a Marine Biologist" by Dr. David Shiffman discusses the hows and whys of cephalopod color change.

In this edition of “Ask A Marine Biologist,” Dr. David Shiffman answers a popular question about our beloved apex predators of the sea.

In this edition of “Ask A Marine Biologist,” Dr. David Shiffman discusses one of the internet’s favorite deep-sea weirdos.

Ever wonder why sharks have so many differently shaped teeth or why they keep regrowing throughout their lives? Dr. David Shiffman discusses one of sharks' most iconic—and fascinating—features.

In this edition of “Ask a Marine Biologist,” Dr. David Shiffman discusses a challenging environment for marine life.

In this edition of “Ask a Marine Biologist,” Dr. David Shiffman gives aspiring marine scientists things to consider when looking for in a college or university.