Deep in the Amazon, there's a creature that defies expectations - pink river dolphins. In this episode, we get up close with ...

The dolphin’s sole tooth type is small (up to ½ inch in length) and conical. Depending on the species of dolphin, these teeth may be blunt or sharp — it all depends on what they like to eat.

“There is a small overlap of food that both bottlenose and common dolphins eat but not enough for it to be competition for food, with the bottlenose dolphin (s) being far more skilled (hunters ...