5 Amazing Facts About Dolphins

5 Amazing Facts About Dolphins

1. Dolphins give themselves names

Each dolphin has a unique signature whistle, which works like a name. Other dolphins use this sound to call and recognize one another.

2. They almost never sleep

Dolphins sleep with only one half of their brain at a time, while the other half stays awake. This allows them to keep swimming and breathing continuously.

3. Dolphins can “laugh” (almost)

During play, dolphins often make special sounds. Scientists believe these sounds express joy and excitement.

4. Many cases of rescuing humans

There are numerous recorded cases of dolphins guiding drowning people to shore and even protecting them from shark attacks.

5. They are very smart strategists

Some dolphins create rings of sand while hunting, trapping fish in an area where they cannot escape.