Kingdom: Aminalia
Phyla: Arthopoda
Class: Malacostraca
Order: Decapoda
Family: Ocypodidae
Genus: Uca
Species: Uca Pugnax
Phyla: Arthopoda
Class: Malacostraca
Order: Decapoda
Family: Ocypodidae
Genus: Uca
Species: Uca Pugnax
Natural Selection:
Natural Selection is what organism better adapted to it's environment, and with this, the organism whose adaption helped the most, determines if it survives or not.
Evolution/ Evidence of Evolution:
Evolution is the progress of an organism, and how it transformed today. For crabs, they date back to the Jurassic period, in which from then, 850 different species has come into existence. Such evidence from the Jurassic period was found from fossils, and the earliest primitive crab is known as the Carboniferous Imocaris. Although, the Carboniferous is only known to be the first primitive crab because of its carapace, which is an organ all crabs have.