Mammals Fish

Protopterus annectens african lungfish notable. This article is an overview of some of ways in which fish are categorised.

Is A Shark A Mammal Or Fish That Is The Question That Is Perhaps Most Commonly Asked When Talking About Sharks Since Marine Animals Dolphins Ocean Creatures

The number of fish species is comparatively higher to mammals.

Mammals fish. Fish are gill bearing aquatic craniate animals that lack limbs with digits they form a sister group to the tunicates together forming the olfactores included in this definition are the living hagfish lampreys and cartilaginous and bony fish as well as various extinct related groups. Fish lay eggs which must still grow into a baby fish. Fish are very diverse animals and can be categorised in many ways.

The adaptive radiations of the mammals to different environments are predominant and successful with dolphins and whales are adapted for aquatic habitat bats have developed wings to fly primates have a developed and large. This is a list of fish with common names that are based on the names of other animals. Whales even give birth to live baby whales that will get milk from their mom for food.

Over half of all living vertebrate species about 32 000 species are fish non tetrapod craniates a diverse set of lineages that inhabit all the world s aquatic ecosystems from snow minnows cypriniformes in himalayan lakes at elevations over 4 600 metres 15 100 feet to flatfishes order pleuronectiformes in the challenger deep the. Whales are a member of the cetacean family and as such despite being wholly water resident whales are mammals not fish there are only 83 species of cetaceans in the world organized into 14 families and two main subcategories. According to fishbase 34 300 species of fish had been described as of september 2020.

Lungfish belong to a prehistoric group of fishes that lived over 300 million years ago. Although most fish species have probably been discovered and described about 250 new ones are still discovered every year. Living species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks skates and rays to the abundant and diverse bony fishes.

When submerged these fish must occasionally swim to the surface and gulp air or they will drown. Whales are mammals because they share the characteristics of other mammals like us. So whales are indeed mammals and not fish.

Fish any of approximately 34 000 species of vertebrate animals phylum chordata found in the fresh and salt waters of the world. But the mammals are more evolved than the fish. The names listed here may refer to single species broader taxa genera families or assortments of types where names are ambiguous the various meanings should be listed here.

Scythe butterfly scythe marked butterfly fish chaetodon falcifer. Toothed whales odontoceti including killer whales narwhals dolphins and porpoises and baleen whales mysticeti humpback whales and rorquals. This is a list of common fish names while some common names refer to a single species or family others have been used for a confusing variety of types.

Around 99 of living fish species are ray finned fish belonging to the class actinopterygii with over 95. The articles listed here should explain the possibilities if the name is ambiguous.

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