Discover Wildlife

Elephants have 'conveyor belt’ teeth, dolphins grow theirs in layers like trees, while sharks have a never-ending supply - so why are we stuck with just 2 sets?

From baby teeth to ‘conveyor belt’ molars, here’s why humans—and other mammals –grow and replace their teeth in such ...
The Clarion-Ledger

These Mississippi dolphins get their teeth brushed and they get belly rubs, too

Guests at Ocean Adventures in Gulfport have been dazzled for years as they have hands-on encounters with dolphins and watch them leap high into the air and play during their performances, but a lot ...
CNN

Dolphins ‘smile’ at each other when they play and to avoid misunderstanding, study finds

Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For humans, flashing a smile is an easy ...
Science Daily

Bottlenose dolphins 'smile' at each other while playing

Dolphins are extremely playful, but little is known about how they -- and other marine mammals -- communicate during playtime. New research shows that bottlenose dolphins (Tursiops truncates) use the ...