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In sea snakes, the posterior sublingual glands, located under and around the tongue sheath, allow them to expel salt with their tongue action. [5] [9] Scalation among sea snakes is highly variable. As opposed to terrestrial snake species that have imbricate scales to protect against abrasion, the scales of most pelagic sea snakes do not overlap.
Curiously, Emydocephalus is the only sea snake that does not possess palatal teeth. [5] Contrary to the foraging habits of other snakes, the turtle-head tends to eat smaller, more frequent meals rather than larger, infrequent prey: this sea snake feeds solely on fish eggs; specifically, the eggs of demersal fish that attach to the substrate, such as those of damselfish, blennies, and gobies.
The Australian terrestrial elapids are technically 'hydrophiines', although they are not sea snakes. It is believed that the Laticauda and the 'true sea snakes' evolved separately from Australasian land snakes. Asian cobras, coral snakes, and American coral snakes also appear to be monophyletic, while African cobras do not. [12] [13]
• Sea snake (bottom right) Marine reptiles are reptiles which have become secondarily adapted for an aquatic or semiaquatic life in a marine environment. Only about 100 of the 12,000 extant reptile species and subspecies are classed as marine reptiles, including marine iguanas, sea snakes, sea turtles and saltwater crocodiles. [1]
Emydocephalus ijimae, commonly known as Ijima's sea snake and turtlehead sea snake, is a species of snake in the family Elapidae. [ 1 ] [ 2 ] The species occurs in East Asia , in the shallow coastal waters of the north-western Pacific Ocean. [ 1 ]
[10] [11] The marbled sea snake also has a deletion mutation in its three-finger toxin gene, reducing its venom toxicity by between 50- and 100-fold. [9] [10] In the African and Indian egg-eating snakes, there are hypapophyses (protrusions) on the vertebrae which are used to break swallowed eggs. [11] [12]
Over a 12-month period, the researchers involved in the study analyzed two species of pythons — Burmese and reticulated — on farms in Thailand and Vietnam, where the snake meat is already ...
They are semiaquatic, and retain the wide ventral scales typical of terrestrial snakes for moving on land, but also have paddle-shaped tails for swimming. [1] Unlike fully aquatic ovoviviparous sea snakes, sea kraits are oviparous and must come to land to digest prey and lay eggs. [2]