feel and watch the peaceful scenery of underwater swimming dolphin on your android screen. underwater swimming dolphin is a scenery live wallpaper featuring a retina wallpapers of refreshing scenery of swimming dolphin underwater, perfect to refresh your mind. dolphins are marine mammals closely related to whales and porpoises. there are almost forty species of dolphin in 17 genera. they vary in size from 1.2 m (4 ft) and 40 kg (90 lb) (maui's dolphin), up to 9.5 m (30 ft) and 10 tonnes (the orca or killer whale). get this live wallpapers dolphins and aquatic animals now. they are found worldwide, mostly in the shallower seas of the continental shelves, and are carnivores, eating mostly fish and squid. the family delphinidae is the largest in the cetacean order, and evolved relatively recently, about ten million years ago, during the miocene. dolphins are among the most intelligent animals, and their often friendly appearance, an artifact of the smile of their mouthline, and seemingly playful attitude have made them very popular in human culture. this is marine animals and free dolphin live wallpaper.

in most cases dolphins (both captive and wild) are typically not dangerous unless provoked or agitated by a human. in fact most dolphins are extremely curious, approachable and friendly and get along very well with humans. some dolphins love interacting with and being fed by people and will often approach small boats to interact with them. in marine parks and aquariums dolphins are often approached by people and will play with them and let people pet them. it is important to keep in mind that feeding dolphins may be prohibited in some locations, especially when it comes to feeding dolphin wallpapers hd in their natural habitat (non captive dolphins) as these marine mammals are a protected species and anything that could interfere with their life (including feeding them) may be considered illegal. in addition to being friendly there have also been cases of dolphins protecting humans from shark attacks and situations where a dolphin sounds or several dolphins helped lead a lost person back to land. dolphins memory always have access to oxygen. they are able to do this because as they dive their heartbeats slow down. this causes blood to flow from other areas in their body to fill their lungs and brain as well as their heart. this ocean animals also utilize their muscle tissue to store oxygen. they can do this because of the myoglobin in their muscles, a protein capable of storing oxygen. before diving underwater dolphin shows gather air through their blowholes and close them up just before their descent to keep any water out.

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