Dolphin
Delphinidae (family)
- Where
- Oceans worldwide; some live in rivers
- Habitat
- Coastal waters, open ocean, and a few rivers
- Diet
- Carnivore — fish and squid
- Size
- Bottlenose dolphins ~8–12 ft
- Lifespan
- Often 20–40+ years
- Conservation
- Varies by species; several are endangered.
Fun Facts
- Dolphins use echolocation — sound clicks — to “see” underwater.
- They breathe air through a blowhole and must surface regularly.
- Pods work together to herd fish into tight balls for easier hunting.
Learn More
Dolphins are mammals, not fish. They nurse their calves and have complex social lives.
Scientists study dolphin communication, play, and problem-solving — they are among the smartest ocean animals.
Threats include fishing nets, boat traffic, and pollution. Cleaner oceans help dolphins and people.