The Real Reason Why Dolphins Are Friendly To Humans (And Other Dolphin Facts)
Dolphins seem friendly to humans because they are smart, social and curious. They are still wild, and feeding them makes them less wary of people.
Facts about animals that live in oceans and rivers, including dolphins, jellyfish, barracudas, shrimp and common river fish.

Dolphins seem friendly to humans because they are smart, social and curious. They are still wild, and feeding them makes them less wary of people.

Are barracudas dangerous? Attacks on people are rare and usually mistaken identity, often over shiny objects or speared fish. Here's how to stay safe.

Jellyfish eat by stunning prey with stinging tentacles, then moving it to one opening that serves as mouth and anus. See what jellyfish eat and why.

River fish include bass, catfish, carp, trout, salmon, pike and walleye. See 18 types with pictures and how to tell if river fish are safe to eat

Shrimp are called cockroaches of the sea because both are armored arthropods that scavenge. Shrimp are crustaceans with ten legs; roaches are insects.

Can dolphins be pets? No. In the US, the Marine Mammal Protection Act bars keeping dolphins as pets, and they are wild animals that can hurt people.