Does anyone, or anything?
Mabey one starfish had a problem and grew another leg. Then it gave birth and since its parents had extra legs that starfish will inherit the legs. That is how a lot of changing in species happen.
A homologous structure.
There are 15 species of old world vultures that exist and 7 species of new world vultures that exist. Turkey Vultures are the most common in the world.
No . . . no species will always exist.
when there are no living members of a species the species is said to be "extinct".
there are 2 species of orangutans
when there are no living members of a species the species is said to be "extinct".
There are fewer than 100 species.
There are around 1,100 known species of bat.
Why SHOULDN'T they live ? Every species of animal, bird, fish and reptile on the planet has the same right to exist as any other !
when there are no living members of a species the species is said to be "extinct".
1.4 million plants exist on earth