All snakes have a backbone (They are vertebrates) but lack limbs , eyelids and external ear openings .

snakes have a specialized row of scales along the underside of their bodies , the ventrals

some families of snakes do retain vestigal pelvic gridles none of them have pectoral girdles

snakes have unique skulls- the bones of their upper jaws are not united at the snout but are free to move

away from one another , so allowing the passage of larger prey

Snakes are long , slender vertebrates without legs . This definition is not enough to

separate snakes from some other groups of animals , through

Snakes are reptiles and branch of zoology that deals with this class of animals is known as 'Herpetology' .

derived from the Greek word herpeton , which means 'a creeping thing' . In the early days of zoology all

lowly animals such as amphibians and reptiles were lumped together in this group of 'creeping things'

and the word 'herpetology' was coined to encompass all of them .

The earliest known fossil creatures resembling snakes are from the lower Cretaceous period some 130

million years ago . These were short and heavy and

burrows, under rocks and occasionally in cool cellars.

which form their main prey , even in total darkness . Furthermore , by comparing the signals recieved by

Some species are protected and collecting or distrubing them is illegal . Unfortunately, these measures

Some common words found in the essay are:
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Approximate Word count = 4954
Approximate Pages = 20 (250 words per page double spaced)