Dolphins are prominent for being playful, smart creatures that learns to perform impressive tricks. However, you may not be aware that dolphins are champion helping safeguard the U.S. nuclear warheads.
Excellent facts of Dolphins
Communicate with whistles and clicks
Communication of Dolphins with another underwater is with a variety of vocalizations. Navigating the ocean and finding prey involves making clicking sounds. It is a way of speaking by whistling with other dolphins. When Dolphins get aggressive or excited, they produce a loud burst-pulse sound. It is also to scare off any shark coming nearby. The female dolphins also
produce such sound to reprimand their calves, their offspring, for bad behavior.
Dolphins always swim on the surface of the ocean and are unable to breathe underwater. Dolphins are power nappers. They do not sleep at a time for several hours; they rest at a time for 15 to 20 minutes one hemisphere of their brain, and in this way take naps each day several times. Resting at a time one hemisphere of the brain, keep the dolphins breathing, swimming, and watching 24/7 the predators.
Marine scientists have tried to identify vocalizations of the dolphins, but it is yet a mystery. The search is on and now using new technologies, high-frequency recorders, and algorithms, scientists are working to unlock the dolphin language mystery.
Navigate using echolocation
Dolphins use echolocation to know the other animals and objects. After emitting high-pitched clicks in a series, they bounce off listening to the echoes. Dolphins judge the space and determine the shape and size of nearby objects. Dolphins avert predators, and echolocation assists them in catching, trapping, and eating squid and fish.
Mammals socializing and respond
Dolphins are social and the aquatic mammals socialize. These animals segregate into friend groups, as humans do and prefer their peers as company than others. Every dolphin has a unique whistle and responds to it. They do not have names, but the female dolphins teach their offspring’s the whistles even before they are born. They call out using their signature whistles
and they remember it even after decades of parting.
44 Different Species
Dolphins although bottlenose are recognizable and popular, there are more 43 species. Most live in tropical and temperate oceans, and a few live in colder rivers or oceans. Depending on the species, dolphin’s behavior and physical attributes vary. Some are 30 feet long such as the Orca and 10 times longer in comparison to the smallest dolphin.
Do not chew food
Dolphins do not chew food. They use their teeth to catch their prey and swallow it. Their digestion takes place in their stomach. They have multiple chambers in their stomach devoted to digestion, and the other chamber store food.
One calf at a time
Female dolphins carry nine to 17 months their babies before giving birth. The tail is born first, before the head. The female dolphins give birth to only one calf at a time. Nursing takes place for a year or two and the calf stays with its mother for one to seven years, before having its own calves and mating.
Skin regeneration in two hours
Swimming with dolphins gives the skin a sleek and super smooth feel. The epidermis of a dolphin may be replaced in every two hours with new skin cells. The regeneration of skin keeps it smooth and reduces drag while swimming.
These sea critters are full of life and vibrant that you can see one at the beach. They are amazing mammals and here are the fun facts:
- Dolphins have a poor smell sense.
- Their life length depends on the dolphin type.
- Dolphins are warm-blooded. They breathe through a blowhole the air; their babies drink milk from mom.
- Dolphins are not always saltwater creatures; there are freshwater rivers dolphins as well.
- Dolphins have two stomachs, one for digestion and one for storage.
- Dolphins always stay half awake as only half the brain goes to sleep and this keeps them on the water surface and they do not drown.
- The hearing of Dolphin is 10 times better to humans.
- Dolphin’s teeth pick up the echoes bouncing from echolocation and not their ears.
- Fin of each dolphin is unique and helps in identification.
- They are the only mammals giving birth to tail first of their young ones.
- An organ ‘melon’ is on the head of the dolphin and it is responsible for echolocation sounds.