Read these facts about dolphins- which are true and which are false?
The skin of dolphins and sharks is almost the same .
The dolphin hears ultrasound with its jaw.
Killer whales (Orcas) are the biggest animals that hunt in groups.
A bottlenose dolphin eats 10 to 22.5 kg of fish a day.
Dolphins call each other by name.
Dolphins rely very much on their sense of smell.
The spinner dolphin and the killer whale are both able to jump more than (7 m) out of the water.
Dolphins drink 10 liters of water per day.
Freshwater dolphins can turn their head 90°.
Dolphins can swim at a speed of 40 km/h.
The killer whale (orca) is twice as big as an elephant.
Dolphins sleep with only one side of their brain at a time.
When its blowhole has problems, the dolphin can breathe through its mouth.
Dolphins have many teeth that help them to chew their food.
Sea salt can make dolphins blind.
There are no bottlenose dolphins in the Mediterranean Sea.
Killer whales leap into the air in order to catch flying birds.