How many different animals are there is the world?
Scientists have recorded 20,000 species of fish, 6,000 reptiles, 9,000 birds, 1,000 amphibians, & 15,000 mammals so far.
Answered -
About Reptiles
Reptiles are animals in the class Reptilia. Reptiles breath air, lay eggs, have skin covered in scales, have four legs and are cold blooded. Reptiles are further broken down into four different orders: crocodilia (crocodiles, gavials, caimans, and alligators,) sphenodontia (tuataras from New Zealand,) squamata (lizards, snakes, and worm lizards,) and testudines (turtles and tortoises.)
About Species
Species are able to reproduce, and is also the most specific major classification in biology. Living things that are very alike are still considered separate species if they cannot mate and produce fertile offspring.
About Birds
Birds are warm-blooded vertebrates that lay eggs. A bird’s skin is covered with feathers, and all living species have wings made from modified forelimbs, even though some species do not fly. The origin of birds goes back to the Jurassic period. Modern birds have no teeth unlike their predecessors. Birds are found on all seven continents and play an important role in the earth’s ecosystem.
Related Questions
-
What is the difference between animation now and cartoons then?
Traditional animation was drawn by hand in 2 dimensional form...
-
What are two differences between bacteria and animal cells?
Prokaryotes are single-celled organisms that lack a membrane-...
-
How is a plant cell different from an animal cell?
Plant cells have a cell wall, animal cells do not. Thanks!
-
What is the difference between Anime and Manga?
Manga is a comic book, usualy japanese. Anime is a cartoon ba...
-
What is the difference between a plant cell and a animal cell?
Some differences between plant and animal cells are that plan...
Comments