ecological niche造句怎么写

Roughly speaking, these animals filled the ecological niches now occupied by toothed cetaceans such as dolphins and killer whales.

Like any wily and surviving creature, this new ideology has faced evolutionary pressures and adapted to its ecological niche.

It seems they grew to fill an ecological niche left by the dinosaurs, aided by a global environment that supported large body sizes.

As new species evolve to fit ever changing ecological niches, older species fade away.

It would mean plesiosaurs not only occupied a similar ecological niche to whales, but behaved like them, too.

The behemoths, known as Bonnerichthys gladius and Rhinconichthys taylori, grew to 30 to 50 feet long and occupied the ecological niche now filled by whales and whale sharks.

Erectus was on our side of a great divide-with an expanded cranium and an ecological niche defined by the use of tools.

The skin, they point out, is a large ecosystem that includes a variety of ecological niches.