The nose of a Star-nosed mole is its most fascinating feature. With little use for eyesight, its tentacled nose is its sense organ to locate prey. … The mole’s tentacles move extremely quickly and can touch up to 12 objects per second. They are thought to detect electrical fields as the animal moves forward.
What is the function of that star like appendage of the star-nosed mole?
The 11th appendages above the mouth act as a tactile fovea. Star-nosed moles constantly shift the nose in a jerky, or saccadic, manner to explore objects of interest with the tactile fovea, in much the same way that we constantly shift our eyes to explore visual scenes with our retinal fovea.
How many tentacles does a star-nosed mole have?
Star-nosed Moles are excellent swimmers and have even been observed swimming under ice. Each one of the 22 tentacle-like projections contain numerous highly sensitive organs, called Eimer’s organs, rich with nerves and blood vessels, which help to identify potential food items.
What is an interesting fact about a star-nosed mole?
Using their shovel-like front limbs to tunnel through soggy, marsh-like areas, the moles often dive and swim for food. Star-nosed moles have been shown to blow bubbles into the water and then re-inhale them through the nose in order to sniff for prey, making them the first mammal known to smell underwater.
Are star-nosed moles endangered?
Вызывающие наименьшие опасения (Стабильная)
Do star-nosed moles have eyes?
Although it has eyes, they are extremely small, as are the optic nerves that carry visual information from the eyes to the brain. It’s likely that its eyes are only good enough to detect small variations in lightness and darkness; better eyesight wouldn’t do it much good underground, anyway.
How big are star-nosed moles?
What do star nose moles eat?
Aquatic insects and annelids form the bulk of the diet with mollusks, crustacea, small amphibians and fish making up the remainder. Bottom-dwelling aquatic invertebrates are the principal winter foods of star-nosed moles living near water.
Do star-nosed moles lay eggs?
The star-nosed mole mates in late winter or early spring, and the female has one litter of typically four or five young in late spring or early summer. However, females are known to have a second litter if their first is unsuccessful. At birth, each offspring is about 5 cm (2 in) long, hairless, and weighs about 1.5 g.
What are the predators of a star-nosed mole?
Predators include hawks, owls, foxes, weasels, minks, skunks, bullfrogs, and large fish such as the northern pike and largemouth bass, as well as domestic cats. The star-nosed mole is the only mole species out of 39 species that lives in swamps and marshes.
How does a star-nosed mole use its nose?
As its name implies, it has a star for a nose — specifically, a snout made up of 22 fleshy tentacles, that form a fleshy, circular star. … In previous work, Catania found that the mole’s tentacled snout enables it to perform another prodigious feat: it can detect and gulp down prey with astonishing speeds.
How many noses does a mole have?
Some creatures feel instead of see the world around them, and they don’t just use their hands. The moles’ noses are made of 22 separate appendages that resemble small wormy protrusions (sometimes described as looking like sneezed-up intestines!)
How long do star-nosed moles live?
This conclusion is based on the female mole only produceing one litter per year; they must live long enough to produce a sufficient number of offspring to sustain their population (Kurta 1995). They have been known to live up to two years in captivity (Baker 1983).
Do star-nosed moles live alone?
The star-nosed mole is the only mole thought to live in colonies. Most moles are solitary animals, only socializing when they reproduce. Little is known about their social behaviour of the star-nosed mole, but they are thought to live in small ‘loose’ colonies.
Can Star-nosed moles swim?
And their front legs are shovels. Star-nosed moles are like a poster child for extreme evolutionary adaptations. Using their shovel-like front limbs to tunnel through soggy, marsh-like areas, the moles often dive and swim for food.
Are all moles blind?
They are part of the Rodent family. Moles aren’t blind, but they are colorblind and see very poorly. They can only see light and movement. They use little movement and scent sensors on the tip of their nose to find prey and other moles.