Only that known popularly as the red weed, however, gained any footing in competition with terrestrial forms.

Most of the 1,400 or so species are marine, with a few living in fresh water and a small number of terrestrial forms.

Search all for match to terrestrial forms.

The alien also had a head protruding above the shoulders - at least that much anatomy it shared with terrestrial forms.

It has been identified as noxious in the aquatic, terrestrial and seed forms.

The earliest confirmed terrestrial forms are known from the early Carboniferous deposits, some 20 million years later.

The twist was this: the Venus particle did not look like a terrestrial form of life.

Many terrestrial forms simply did not live in environments in which preservation was possible.

They instead develop directly into their entirely terrestrial adult form.

Without turning, she said, "In my terrestrial form, you and I were lovers."