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Why birds and mammals are more active in the middle of winter than amphibians and reptiles?
Wiki User
∙ 11y ago
Because reptiles and amphibians are cold-blooded and hibernate during winter. This means they respire very slow and become sluggish. When they hibernate they basically become uncounscious. Mammals on the other hand, are warm-blooded. This means they have a constant body temperature. During winter they need more food to burn for respiration and therefore are more active because they search for food all the time.
Wiki User
∙ 11y ago
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Were frogs around during the time of the dinosaurs?
Frog fossils have been found dating to the Jurassic period. The Jurassic period was the middle period in the middle of the Mesozoic. The Mesozoic was the era in which all dinosaurs lived, so frogs and dinosaurs did coexist.
Does a cow have ossicles?
Yes, all animals that can "hear" in the same manner as humans, have ossicles in the middle ear. This does include the cow and all other mammals. It does not include the turtle or birds or amphibians.
What separates the vertebrae from each other?
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Wheir is a mammals stomach found?
In the middle of its body
How are primates different from all other mammals?
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Do pugs have three bones in the middle ear?
YES, pugs, and dogs in general, are mammals and mammals are set apart from the rest of the animals by having the three auditory ossicles of the middle ear.
What are the main characteristics that separate mammals from all other animals?
The 5 defining characteristics of a mammal are; mammillary glands(glands that make milk) , hair/fur, muscular diaphragm(muscle used to breath) , auditory obssicles(three ear bones) and denary (solid jaw and teeth) bird are hot blooded birds are not mammals nurse young birds nurse young not just from a teat P.S. I am a student studying zoology so I know that for a fact that is the 5 defining traits of mammals
How long was the age of the amphibian?
Tetrapods (early amphibians) emerged in the fossil record some time int he lower Carboniferous, around 360 million years ago. Reptiles emerged later in the carboniferous, 320-310 million years ago, and were probably the dominant terrestrial fauna by the start of the Permian, 299 million years ago. If any period in geological history could be described as the age of the amphibians, it would be the lowere-to-middle Carboniferous.
What is a mammals leg joint?
Mammals have a joint in the middle of the leg that is called a knee. In humans this joint allows the leg to bend backwards.
Are flamingos mammals or reptiles?
No, a Flamingo is a bird. Not a mammal.Mammals (class Mammalia) are a class of vertebrate animals characterized by the presence of sweat glands, including sweat glands modified for milk production, hair, three middle ear bones used in hearing, and a neocortex region in the brain. All mammals (except for the five species of monotremes) give birth to live young instead of laying eggs. Most mammals also possess specialized teeth, and the largest group of mammals, the placentals, use a placenta during gestation. The mammalian brain regulates endothermic and circulatory systems, including a four-chambered heart.No. A flamingo is a bird.
How long have amphibians been on earth?
Tetrapods (early amphibians) emerged in the fossil record some time int he lower Carboniferous, around 360 million years ago. Reptiles emerged later in the carboniferous, 320-310 million years ago, and were probably the dominant terrestrial fauna by the start of the Permian, 299 million years ago. If any period in geological history could be described as the age of the amphibians, it would be the lowere-to-middle Carboniferous.
