Sentences with phrase «human species once»

From fossils, researchers know a dazzling diversity of extinct ape and human species once existed.

Although modern humans are the only human species alive today, other human species once walked the Earth.

Not exact matches

Let us admit this frankly, once and for all: what most discredits faith in progress in the eyes of men today, over and above its reticences and its helplessness in meeting the cry of the «last days of the human species», is the unfortunate tendency still shown by its adepts to distort into pitiful millenarianisms all that is most valid and most noble in our now permanently awakened expectation of the future appearance of some form of «ultra-humanity».

Once upon a time there were many almost - human species whom our ancestors encountered with mingled fear and wonder.

Once the human species evolved, one man and one woman, they couldn't reproduce with their predecessors!

For as regards infra - human living things, even on the suppositions already mentioned, the question is probably still open, or has not yet been sufficiently subjected to examination, whether the living substantial formal principle of what in the metaphysical sense would be a real species (biological category, etc.), is multiplied with the individuals of the species (biological group, etc.), or is one and the same principle which, unfolding its formative power at various material points in space and time, manifests itself more than once in space and time.

The need for pure air, clean water, healthy food, adequate shelter, the regeneration of the species and the overcoming of all threats to human survival — these have once again become the central issues to which we must «devote» ourselves.

With regard to Callahan's comparison of the lives of PVS patients with the lives of «fertilized eggs,» I would simply note that once an egg has been fertilized it is no longer an egg but a new living being, and in the case of the human species, a new human being — surely a being of incomparably greater value than an «egg.»

It is human because it can be distinguished from other non-human species, and once implanted in the uterine wall it requires only nutrition and time to develop into one of us.

The human ability to formulate language was once believed to be the difference between humans and other species.

Once we collectively understand our situation: the contribution made by humans to the degradation of the environment and the extinction of other species, or the impact consumers in the rich West have had, and continue to have, on the impoverishment of producers in developing countries, our proper response is to want to change things - and to change them radically.»

An ancient species of pint - sized humans discovered in the tropics of Indonesia may have met their demise earlier than once believed, according to an international team of scientists who reinvestigated the original finding.

Once he makes the case that the snake is deeply embedded in the human psyche, Wilson argues that if we come to appreciate «that wild nature and human nature are closely interwoven» we might be more inclined to study and conserve other species.

To determine what level of a toxin is safe, researchers take a dose that has no observed toxicological effect in an animal and divide it by 10 once (to account for the differences between species) and then again (to account for variations among humans» ability to handle toxins); for pesticides, the dose is then divided by 10 a third time (to allow for the extraordinary sensitivity of babies and children).

Once we shared the planet with other human species, competing with them and interbreeding with them.

Giant Ice Age species including elephant - sized sloths and powerful sabre - toothed cats that once roamed the windswept plains of Patagonia, southern South America, were finally felled by a perfect storm of a rapidly warming climate and humans, a new study has shown.

Once the human and chimp genomes were deciphered about a decade ago, they realized they could now begin to pinpoint the molecular underpinnings of our big brain, bipedalism, varied diet, and other traits that have made our species so successful.

Once toggled, humans from H. erectus to our own species developed culture and society around the fire's glow.

The dodo (Raphus cucullatus), an extinct, giant flightless pigeon once endemic to the island of Mauritius, may arguably be the most widely known animal species to have gone extinct in human history.

«The report is important because it indicates once more that the human species is not the only one capable of compassion,» says Edwin van Leeuwen at the University of St Andrews, UK.

Once thought to be exclusive to humans, scientists have recognized signs of culture in several other animal species, including dolphins and primates.

A reconstructed skull of Homo floresiensis once belonged to a small species of ancient humans.

From these measurements he hoped to determine whether different human populations were separate species resulting from multiple divine creations (polygenesis) or a single species created but once (monogenesis), a major question in pre-Darwinian science [6].

Once thought to affect mainly humans and livestock, Brucella is now being found in a species scientists never expected: African bullfrogs.

It was once thought that the human digestive system has about 400 to 500 different species of bacteria in the bowel, but recent research in America has found that there may be over 15,000 different species.

Once again we get an animal population where all the species work together instead of eating each other, and there is even the possibility of interspecies sex, when a human's house cat falls in love with Stella the skunk (Wanda Sykes).

The movie blends live action and animation with a story that takes place in an alternate version of medieval China in which monsters and humans — two species that once coexisted peacefully — have settled into a more precarious truce.

Again, you avoid the real issue — invasive species imposed on once - stable ecosystems by human agency.

Named for an endangered species — the Laughing Gull — this caye was once a crowded breeding ground but gulls moved to more remote atolls as a result of humans visiting too often.

Visitors can swim across a pool to enter the ATM Cave where ancient Maya priests once performed human sacrifices, explore the ruins of Cahal Pech, once home to an elite royal Maya family more than a thousand years ago, rappel more than 300 feet down the infamous «Back Hole Drop», ride an inner tube down the Caves Branch river while passing through the remnants of the Maya underworld, zip line through the jungle canopy, enjoy some of the best fishing anywhere in the world, snorkel in crystal clear water, and enjoy bird watching in a land that more than 500 species of birds call home.

I once used the title «Puberty on the Scale of a Planet» to convey how the human species seems to be going through the same awkward transition we all experience as individuals in moving from often - reckless teen ebullience to the more measured life strategies of adulthood.

Again, thanks to the folks at RealClimate for letting me post, since I am not an actual scientist.Tim Ferris, a popular astronomy and astrophysics author that I've read extensivly, and like a lot personally, once said to me at a Commonwealth club meeting, here in San Francisco, a few years ago, that maybe species extinction and loss of human life is part of the natural cycle of the planet cleansing itself.At the time, (although he is still one of my favorite cosmology and astronomy authors), I felt the comment was arrogant, and off base.Now I'm not so sure.

[I «debated» someone once who stated there should be no regulation until there is absolute proof that the human species will otherwise go extinct.

It is not likely to be pleasant and it is probably past time to create some sort of repository for current human knowledge in the hope that it might prove useful in some distant future... perhaps stick it on the moon so the Earthly turmoils will have limited impact and we can assume that the species has once again achieved some technical capabilities.

The danger then becomes that if the geoengineering effort should ever falter, a century's worth of warming could hit us all at once, far too rapidly for human society and other plant and animal species to adapt.

It shows that even when you're working for the long - term survival of a species, it's hard to think of all the possible things that might affect the species, when those things happen once in a (human) lifetime.