In this edition of Ask a Marine Biologist, Dr. David Shiffman offers some general career advice.

Take a look at these three scuba certifications you can start online and from your home.

An inexperienced freediver tries to push his limits, putting himself and his dive buddy at risk of drowning.

Renowned cave diver and underwater explorer Jill Heinerth shares how she stays alive in the trickiest of cave diving situations, from embracing fear to thinking small.

Here are five scuba skills you can practice from home, so you can always be ready for your next dive trip.

If you like marine biology and bathroom humor, urine for a treat with this edition of *Science Stop.*

Give deeper exploration and longer bottom times a shot with a Discover Technical Diving course.

Keep yourself in check with these three steps to improve your underwater buoyancy on your next dive.

This fire department volunteer diver made several mistakes in this edition of Lessons for Life.