RIVER ANGEL DOLPHINS2022 Dolphin is an aquatic mammal in the clade Odontoceti (toothed whale). Dolphins belong to the families Delphinidae. Dolphins range in size the 1.7- metre-long (5 ft 7 in) and 50 kilogram. Various species of dolphins exhibit sexual dimorphism where the male are larger than females. They have streamluned bodies and two limbs that are modified into flippers. Though not quite as flexible as seals, they are faster; some dolphins can briefly travel at speeds of 29 kilometre per hour or leap about 9 metres. Dolphins use their conical teeth to capture fast-moveing prey. They have well- developed hearing which is adapted for both air and water; it is so well developed that some can survival. Delphinidae is the largest and relatively small family in the order cetaceans. Dolphins originated on Earth about 10 million years ago during the Miocene period. Dolphin are some of the most intelligent creatures on Earth and their often friendly behavior and always cheerful nature have made them very popular among humans.
TYPE OF DOLPHINS
RIVER ANGEL DOLPHINS2022 There are an estimated 43 different types of dolphins in existance, and these sea animals are close relatives of the whale. Dolphins are knows to be higly intelligent, believed to enage in complax though much like humans. From the common dolphin to bottlenose dolphins, Atlantic spotted dolphin to killer whale, there are a lot of different types of dolphins to explore.
WARM BLOODED
Warm bloobed means that their body is able to regulate its own temperature, so they warm even when the water temperatures around them are cold. Some of their native envoiroment, such as the waters of the northern Pacific Ocean, can get very chilly. In these places, being warm-blooded is a big advantage for survial. Being warm-bloobed also makes dolphins and other cetaceans less prone to infections and other health conditions the affect cold-blooded species.
LUNGS, NOT GILLS
Another central feature of marine mammals is that they have lungs, not gills. Dolphins, like whals, need to periodicaily come to yje surface to replenish their air supply. They have blowhiles that they close while diving , and then open at the surface for air.
Marine mammals have also adapted in some special ways to thrive in an aquatic environment. For instance, dolphins exchange 80% of the air their lungs with each breath, while humans are only capabl of exchanging 17% marine mammals also have a greater capacity for oxygen storage in their lungs, blood, and muscles. All of thiscreates a more efficient use of the oxygen in their bodies and is what allows many species to dive extended periods of time.
LIVE BIRTH
RIVER ANGEL DOLPHINS2022Dolphins give birth to live young and do not lay eggs. They can get pregent on average every two to four years once they’re mature, although some spacies can have 5-7 years between births. Dolphins calves tend to stay close to their mothers for a few years before venturing off on their own. However, some calves will stay their mothers for lifetime.
HOW DO DOLPHINS COMMUNICATE ?
RIVER ANGEL DOLPHINS2022 One of the fascinating things about these marine mammals is their complex methos of communication. So how do dolphins communicate ? There are three ways:-
| WHISTLES |
| ECOHOLOCATION |
| SOCIAL COMMUNICATION |
- Dolphins communicate through more then just clicks and whistles. They can also slap the water’s surface with their tail or bodies, which is officially termed breaching.
- Dolphins can make squeaks, buzzes, whistles, clicks, and a wide array of other crazy noises.. These whistles can be heard by others of the species from miles away. Their whistle repertoire can change as they get older, and dolphins who bond with one another can learn each others signatures whistle and often copy each other’s whistles.
DOLPHIN BODY PART
