By Jessenia Gomez
Parts of a Dolphin
A dolphin has many fins that helps them swim. Like a dorsal fin a dorsal fin helps the dolphins balance correctly and the size of the fin can vary. Another fin is a fluke it helps the dolphin push through the water. The last kind of fin is the flipper it helps them steer like start,turn,and stop.
Dolphins have blowholes. A blowhole is located on top of their heads which helps them breath like exhale and inhale they do that extremely fast and when dolphins go to the surface to breathe the air exits their blowhole 100 miles an hour.
Parts of the head
Dolphins have a melon which helps them focus on the sound of the waves. A rostrum is the snout. Dolphins have about 100 teeth and they only have one set of teeth.
Dolphins eyes move independently so one can look up and the other can look straight and many dolphins can not see color.
Dolphins have smooth hairless skin. The skin of a dolphin is sensitive and delicate. Dolphins are gray with dark backs. Their skin feels like rubber and it is cool and silky.
The life cycle of a dolphin
Dolphins are born on the move which means that they are born while swimming because they need to escape from sharks. Many dolphins fins are soft and flappy. Dolphins have to go to the surface to have their first breathe and their mothers have to help them. Newborns will always follow their mothers everywhere and they will never leave their side. Many calfs stay with their mother for three to six years with them so the mother can help them catch their own food and to stay away from predators. For more protection dolphins form groups that let their youngsters play safely.
similarities and differences
Did you know that dolphins can dive up to 1,500 ft but, they usually dive up to 200 to 250 ft and humans can dive up to 130 ft. Humans speed in the water is 3 miles per hour and a dolphin speed is 30 miles per hour.
Did you know that dolphins replace 90 percent of fresh air and humans replace 15 percent of fresh air. Many people have to fight to hold there breathe underwater but, dolphins have to think about when to go up to the surface to take a a breathe . Dolphins can hold there breathe for 7 to 10 minutes and humans can hold there breathe to about 1 to 2 minutes.
Scuba divers to the rescue
There are many problems that dolphins have to face and one of them is that dolphins are getting caught in fishing nets and fisherman are letting them die die in the water. Many fisherman are throwing the dolphins dead bodies back into the ocean. This is called bycatch. It is decreasing the population of dolphins.
But now there is a solution, there are scuba divers helping lost dolphins get out of the net. There is a law called Marine Mannel which helps dolphins,whales. and porpoises. People can also help by buying dolphin safe tuna. Fisherman will use safety nets that don't catch dolphins.
Did you know that dolphins are social creature that live in groups. Most dolphins live and feed with their families. This is called a pod which means group. They also catch fish together by herding them into a little space.
Many dolphins have their own communication. Dolphins can make a sound like whistling, or barking. Most dolphins can produce about 2,000 clinks per second. When dolphins jump straight into the water and their backs splash into the water that means they want to get close to a pod. Dolphins have echolocation that helps them find food.