Little Known Bottlenose Dolphin Facts

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Little Known Bottlenose Dolphin Facts

Little Known Bottlenose Dolphin Facts

Little Known Bottlenose Dolphin Facts

Little Known Bottlenose Dolphin Facts

 

Marineland DolphinsDo you know why dolphins have a charcoal grey top half and a pearl grey or white bottom half of their body? We like to call it countershading! Here’s how it works. When a predator who is below the dolphin looks up, it sees a pearl grey color that blends in with the sky. However, when a predator who is above the dolphin, looks down, it sees a dark grey color that blends in with the bottom of the ocean. This camouflaging technique, “countershading”, helps to protect the dolphin in a very unique way.

 

Dolphins.511081.IS_375x250Some dolphins can hold their breath for up to fifteen to seventeen minutes. But like other mammals, dolphins must breath air. With this in mind, how does the dolphin surface regularly to obtain a fresh breath of air while sleeping? When a dolphin is sleeping, only half of its brain is actually resting. This can be observed by noting that one eye is closed while the other remains open. By allowing half of the brain to rest, it helps the dolphin in two ways. It prevents the dolphin from drowning by allowing it to continue coming up for air. It also allows the dolphin to continue to be alert from any predators who may be planning an attack on the dolphin.

 

 

MarinelandPic-dolphin_375x250A Bottlenose Dolphin breathes through a hole on the top of its head. This hole is called a blowhole. It acts as a nose; however studies have proven that they can’t actually smell anything. The top of their head is the part of their body that reaches the surface first. This is helpful to the dolphin as it allows him to breathe a plentiful breath of air before descending. Even at amazing depths of over 1,200 feet, they control their blowhole and maintain it in a closed position. This is to protect them from breathing water into their lungs. This is a lot like snorkeling as water is forced out of the snorkel before it is inhaled during the next breath of air.

 

Marineland DolphinsIn closing, the constant smiling expression on a dolphins face is not actually a smile at all. When they appear to be smiling, they are actually pushing out the salt water, which is unhealthy for the dolphin to consume. They must keep the salt water separate from the food they consume. Dolphins do not chew, instead they swallow their food whole. A dolphin has 72 to 104 teeth. They do not use their teeth for chewing instead the teeth are used for grabbing and holding their food. ~Brianne 13

 

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