The hidden mouse is the smallest mouse, about the size of a thumb. Cryptomeria fortunei belongs to Amphibidae of porcupine suborder, and South African amphibians, scorpions, frost rats and naked zokor are also in the same family.
Mr. Lu Xun said in the article "Dog, Cat and Mouse" that the Tibetan mouse is a lovely little animal, which can climb the table, pick up vegetable residues and lick the edge of the bowl. Hidden mice are only thumb-sized and can eat ink, so they like it very much. Because of misunderstanding, the hidden mouse was eaten by the cat and hated the cat. Later, it was found that his eldest mother was trampled to death, which made him hate her for a while. This shows how much he likes the hidden mouse.
A keen sense of smell
American neuroscientists have found that moles have an unusual sense of smell and can distinguish different food smells in three dimensions. It is a mammal with a three-dimensional sense of smell.
The research report was published in the journal Nature Communication. Stereo sense of smell means that every nostril of a mole can smell different smells, and the brain can also recognize different smells. This study proves for the first time that the mole is the first mammal with a stereoscopic sense of smell.
Kenneth Catania, a neuroscientist at Vanderbilt University in the United States, said that before, I thought that the nostrils of the mole were too close to effectively detect the gradient of odor. In fact, moles use their stereoscopic sense of smell to determine the specific orientation of food, which implies that other mammals also rely heavily on their sense of smell, such as dogs and pigs.
In the experiment, Catania scattered some food around the exit of the mole's cave in an arc of 180 degrees, and used earthworm, the mole's favorite food, as food and placed it in different positions. He and his colleagues were able to observe the olfactory characteristics of the mole every time the air pressure changed.