"Are you saying there was no planet on which the human species originated?"

A single species cannot originate on more than one planet.

However, the modern species most likely originated in the Andes, some time after this early migration.

Just how species originate is one of the biggest questions in evolutionary biology.

When the species originated, about 200 million years ago, the African area was dryer and hotter.

The zoo exhibits more than 220 animals of 90 species originating throughout the world.

It has been argued that these two species originated from a parasite of birds.

The species originated in another solar system, emigrating to this one ages ago.

The most primitive species originated by spontaneous generation, but these gave rise to more advanced ones.

A specific species, obviously originating on only one planet, spread out over two hundred light-years.