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Fish have gills to extract oxygen from water, while mammals have lungs to breathe air. Mammals give birth to live young and nurse them with milk, while fish lay eggs and do not provide parental care. Additionally, mammals have hair or fur covering their bodies, while fish have scales.
29 cze 2022 · The five main groups of vertebrates are fish, amphibians, reptiles, birds, and mammals. There are actually more categories, since bony fish are separate from jawless fish (lampreys and hagfish), cartilaginous fish (sharks and rays), and lobe-fin fish (lungfish and coelacanths).
27 maj 2024 · Fish are aquatic vertebrates with gills and scales, primarily breathing underwater, while mammals are warm-blooded vertebrates, usually with hair or fur, and most give birth to live young. Mammals nurse their offspring with milk, unlike fish.
Fish have scales and fins to help them swim, while mammals have fur or hair and limbs adapted for walking or running. Additionally, fish reproduce by laying eggs, while mammals give birth to live young.
22 lis 2023 · Mammals are warm-blooded, hair-bearing vertebrates that produce milk. Mammals represent a diverse and fascinating class of animals, encompassing a wide range of species from tiny shrews to humans to the colossal blue whale.
22 paź 2024 · In tunicate larvae, this is accomplished using a tail; in cephalochordates, by undulations of the body; and in vertebrates, by general body movements (as in eels and snakes) and by the action of fins and limbs, which in birds and some mammals are modified into wings.
9 min read. Fish and mammals are two distinct groups of animals that share some similarities, but also have many differences. While mammals are warm-blooded and have fur or hair, fish are cold-blooded and have scales. Additionally, mammals give birth to live young, while fish lay eggs.
