The heads of slugs and snails have two pairs of retractable tentacles. The upper optical tentacles have light-sensitive eye-spots on both ends. The stems of each eye can move independently and can re-grow if lost. The eye stalk is also used for the sense of smell.
What are snail tentacles?
Unlike the eye stalk, the short snail's tentacles almost always point to the ground. They are mainly used to orient the sense of smell. The sensory cells on the surface of the tentacles give the snail a picture of its environmental odor and also help in the search for food.
Do snails have tentacles or antennae?
Antennae — A long protrusion from the snail's head that detects scent and orientation and sometimes produces eye-spots. Also called a tentacle.
Where are the snail tentacles?
4: There are two pairs of tactile sensations on the head of Niwanoou. The upper antennae have the eyes and organs for the sense of smell, and the lower antennae have the organs for the sense of touch.
Do snails have legs?
Snails and slugs are two species of animals, but they are actually quite similar. .. Both of these animals have long bodies without legs. Snails and slugs work using large muscles at the bottom of the body called the feet.
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