It is not the strongest of the species that survives, not the most intelligent, but the one most responsive to change.

Environmental changes gave rise to new species.

Although rainforests make up only two percent of the earth's surface, over half the world's wild plant, animal and insect species live there.

The lion and the tiger are two different species of cat.

There are 340 species of hummingbirds.

Darwin wrote "the Origin of Species".

We associate the name of Darwin with The Origin of Species.

That species of bird is said to be in danger of dying out.

Among these there may be new sources of food fish and new species of other creatures.

The species will be made extinct by the end of this century.

The species faded away.

This species holds the record for long-distance migration.

Tiger lilies are one species of the lily family.

Butterflies of this species are now extinct.

Some species gradually develop elaborate repertoires of dozens or even hundreds of variants of a basic song.

Every time a species dies out, we lose forever a part of our natural world.

One finding to emerge was that critical features differ between species.

The tiger is a vanishing species.

We are in danger of making life impossible for a large number of animal species.

Half the species are woman.

Many fragile species are on the verge of extinction.

Many species of insects are on the verge of extinction.

The authors state quite categorically that the female members of only a small number of species also sing.

It has been estimated that, as a result of the destruction, fifty species of wildlife are disappearing from the earth each day.

Gambling site lets users bet on which species will go extinct because of the oil spill in the Gulf of Mexico.

It is the preservation of the species, not of individuals, which appears to be the design of Deity throughout the whole of nature.

Two new species of pancake batfishes have been found in the area affected by the BP oil spill.

That one is a migratory species.

Fresh-water fish include some designated as protected species. You're not allowed to catch or buy them.

This species of moth has evolved an ingenious camouflage for blending into its surroundings.

There exists a beautiful, colorful species of turkey in the Yucatán Peninsula called the "ocellated turkey," or "el pavo ocelado."

This species of deer is so elusive that only two have ever been photographed in the wild.

If we don't make the utmost effort to protect the rainforests, many of the rare species in them will become extinct.

Murdering elephants, tigers and other endangered species is not just cruel; it's also illegal.

Carl Linnaeus is famous for his early classifications of thousands of animals and plant species.

The biologist classifies the newly found species in its own genus, whereas other taxonomists want to put it into an established genus.

It is an endangered species.

Easter bunnies are an oviparous species in the mammal family of Leporidae.

Cabbage, cauliflower, broccoli, and Brussels sprouts are all cultivars of the same species.

Man who preys both on the vegetable and animal species, is himself a prey to neither.

Elephants are divided into three different species.

African elephants are divided into two different species: savannah and forest elephants.

Long before Darwin's theory of evolution, Buffon had surmised that species evolved very slowly under different material circumstances.

It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.

Elephants are an endangered species.

What species of elk is it?

These insects are different species.

These mammals are the same species.

A dolphin is a mammal species.

Parsnip is a biennial species, similar to carrots.

The dodo is an already extinct species.

It's up to each one of us to understand that subspecies is a biological concept, lacking in the species Homo sapiens sapiens.

Now I understand why there were 8 persons and 7 pairs of animals of each species in Noah's Ark.

How many animals of each species were there on Moses' ark?

We study a species of poisonous frog very similar to a stone.

There are many endangered species.

I had never before seen this species of fish.

The crocodile is a protected species.

The Great Jerboa is a species of rodent.

Once a species goes extinct, it's gone forever.

Not all species of spiders are poisonous.

I still can't believe they had a snow leopard in that zoo. I thought they were an endangered species.

How many animal species are there in the world?

How many animal species are discovered every year?

Some species are probably not domesticable--the polar bear comes to mind--others, seemingly unlikely--like the alligator--are being farmed today, although keeping them confined has turned out to be a bit of a problem.

Human greed is threatening the existence of many species.

Cats are the top threat to wildlife. They already are responsible for the global extinction of thirty three species and kill billions of wild birds and mammals each year.

There are multiple species of seagulls which vary in size.

My daughter knows the names of all the different species of dinosaurs.

I have been studying you just as a biologist studies an animal species.

Esperanto is already a good language for the mere fact that it can distinguish between Man as an individual of humankind, and Man as the male of the species.

Many shark species are threatened with extinction.

This species is critically endangered.

The depredations of human hunters are thought to have been the key factor that pushed many species to extinction.

This species of butterfly has already gone extinct.

In Tom's new novel, extraterrestrials pursue the ambitious goal of presenting all the life forms in the galaxy in a single vast menagerie. Individual humans are also carried off for this purpose and -- due to the enormous diversity of species -- thrown together with the apes of the planet Earth, without distinction. John found that highly offensive.

Laughter is one of the very privileges of reason, being confined to the human species.

There are five recognised species of kiwi, all of which are vulnerable or endangered to some degree.

Climate change impacts on biodiversity are already being observed in alteration of the timing of critical biological events such as spring bud burst, and substantial range shifts of many species. In the longer term, there is an increased risk of species extinction.

Climate change impacts on biodiversity are already being observed in alteration of the timing of critical biological events such as spring bud burst, and substantial range shifts of many species. In the longer term, there is an increased risk of species extinction.

Warmer waters harm coral reefs and alter the distribution, abundance, and productivity of many marine species.

Many animal species are on the brink of extinction.

Nectarines and peaches are the same species.

Section 9 of the Endangered Species Act makes it illegal to take an endangered species of fish or wildlife.

Section 9 of the Endangered Species Act makes it illegal to take an endangered species of fish or wildlife.

The Northern flying squirrel is the only species of flying squirrel in North America.

There are three intelligent species on the planet.

This is a plant of the species Schlumbergera truncata.

Tom spent years traveling the globe looking for new species of birds.

Most scientists now agree that Chicxulub contains evidence that a huge asteroid or comet crashed into Earth's surface, causing the extinction of more than 70 percent of the living species on the planet, including the dinosaurs.

Some people today have a few genes from other species, the Neanderthals and the Denisovans.

A hinny is a hybrid offspring of two species, a male horse and a female donkey.

A mule is a hybrid offspring of two species, a female horse and a male donkey.

They wiped out an entire species.

In some species of animals, the female is dominant over the male.

In the Redwall universe, stoats are one of the villain species.

Scientists have discovered a new species of dinosaur.

The yellow-eyed penguin is the sole extant species in the genus Megadyptes.

Some owlets are on the endangered species list.

Depending on the species, guavas may be round or oval.

In living through this "great epoch," it is difficult to reconcile oneself to the fact that one belongs to that mad, degenerate species that boasts of its free will. How I wish that somewhere there existed an island for those who are wise and of good will! In such a place even I should be an ardent patriot.