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DOES A SNAKE HAVE A BACKBONE DOWNLOAD

The largest species, the slender giant moray eel, can grow to 13 feet in length.A specimen known as “the Brantevik Eel ” lived for 155 years in the well of a family home in Brantevik, a fishing village in southern Sweden. While the species’ lifespan in the wild has not been determined, captive specimens have lived over 80 years.In 1997, Innovatie Netwerk in the Netherlands initiated a project where they attempted to get European eels to breed in captivity.Several projects have been started to prevent them from becoming endangered.Since the 1970s, the number of eels reaching Europe is thought to have declined by around 90% (possibly even 98%).The European eel is a critically endangered species.The European eel is normally around 60–80 cm (2.0–2.6 ft) and rarely reach more than 1 m (3 ft 3 in), but can reach a length of up to 1.5 m (4 ft 11 in) in exceptional cases.As marine animals and unlike reptiles, eels breathe underwater with their gills and fins, and therefore cannot survive outside of water.Eels live in both saltwater and freshwater.The eel’s backbone is made up of over 100 vertebrae which makes it very flexible.They have long, narrow bodies with long dorsal and anal fins.Even though the eel looks like a snake it is really a fish.

Eels belong to the order Anguilliformes (aka cousin of the fish).Keep reading for more interesting facts about eels. Eel is a delicacy in some cultures, but its blood is toxic, so it needs to be cooked thoroughly.

Despite its name, the electric eel is not an eel but a knife fish. Freshwater eels are known to travel as far as 4,000 miles to breed. There are over 800 different species of eel.

DOES A SNAKE HAVE A BACKBONE DOWNLOAD

Download includes the following worksheets:Įels may look like snakes, but they are actually fish.

Snakes have many small muscles rather than one big one which allows them to do this. Snakes are most similar to caterpillars but at the same time not because a snake does the motion in such small movements, we can’t see them do it, they also do it multiple times down their body, so it is not just one motion of going forwards.Ī snake will alternate between segments on the underbelly to keep their movement constant and smooth. To keep this as simple as possible, they use the muscles on their belly. So, we know that snakes have bones, so how do snakes move. So how do they do this? Well it is simple, snakes can and will disconnect the law jaw which allows such a wide opening and do a sawing motion using one side of the jaw to go forwards and pull back, then moving the opposite side and repeating until the prey is ingested. The top of a snake’s skull is fixed in place and does not have any give, the stretch comes from the bottom jaws which can open to a near 180-degree angle and are independent to one another. This allows snakes to comfortable swallow prey up to 3.5x times its head size. The skull of a snake is also quite complex as they do not chew their food, a snake must adapt to be able to swallow larger prey items.

This is where things get interesting, you would think a human has more bones than most snake species, but this is not true.Ī human has 206 bones in the entire body, whereas 95% of snake species have more than 400 bones within their body, these bones are much more flexible and durable than human bones also.