Sentences with phrase «living vertebrate animal»

«We definitely expected the sharks to be old, but we didn't expect that it would be the longest - living vertebrate animal,» says Julius Nielsen of the University of Copenhagen, Denmark.

policies regarding human subjects, live vertebrate animal subjects in research, and safe laboratory practices

Not exact matches

Life on this planet has, in the context of its limitations, managed a threefold success: plant and animal life, and among the animals, arthropods (including social insects) and vertebrates (including humankLife on this planet has, in the context of its limitations, managed a threefold success: plant and animal life, and among the animals, arthropods (including social insects) and vertebrates (including humanklife, and among the animals, arthropods (including social insects) and vertebrates (including humankind.

«Living herd animals do occasionally turn carnivore to fulfill a particular nutritional need,» says vertebrate paleontologist Paul Barrett of the Natural History Museum in London.

«Tracking data reveal the secret lives of marine animals: Seals, whales, sharks, turtles, seabirds, and other marine vertebrates show similar patterns of movement in marine environments.»

Vertebrate evolution generally proceeds at far less than a snail's pace, making study of the process in living animals difficult at best.

Read previous Zoologger columns: Horror fly returns from the dead, Even parasitic worms have a divided society, Shrimp plays chicken with its sex change, Death by world's longest animal, Live birth, evolving before our eyes, Sympathy for the piranha, The world's most fecund vertebrate, Whale - eater's helpful sulphur - powered guests, Horror lizard squirts tears of blood, Secret to long life found... in a baby dragon

In this primitive two - room shed, Congdon has conducted some ofthe most sophisticated life - history studies of long - lived vertebrates — research that could upend our theories about how animals grow old andmight one day help unlock secrets of human longevity.

Read previous Zoologger columns: How weakness makes the crayfish stronger, The heaviest animal in the air, Ancient air - breathing, triple - jawed fish, Horror fly returns from the dead, Even parasitic worms have a divided society, Shrimp plays chicken with its sex change, Death by world's longest animal, Live birth, evolving before our eyes, Sympathy for the piranha, The world's most fecund vertebrate.

Finds such as the newly discovered Birgeria species and the fossils of other vertebrates now show that so - called apex predators (animals at the very top of the food chain) already lived early after the mass extinction.

According to Strausfeld, confirmation of this shared ground pattern in the vertebrate hippocampus would suggest that it originated from a very ancient common ancestor likely to have lived about 600 million years ago just before the Cambrian explosion, a relatively short period when most major animal phyla emerged.

Read previous Zoologger columns: Ancient air - breathing, triple - jawed fish, Horror fly returns from the dead, Even parasitic worms have a divided society, Shrimp plays chicken with its sex change, Death by world's longest animal, Live birth, evolving before our eyes, Sympathy for the piranha, The world's most fecund vertebrate, Whale - eater's helpful sulphur - powered guests, Horror lizard squirts tears of blood.

Around 390 million years ago, the first vertebrate animals moved from water onto land, necessitating changes in their musculoskeletal systems to permit a terrestrial life.

All major groups of animals — an entire kingdom of multicellular life that today includes insects, worms, shellfish, starfish, sea anemones, coral, jellyfish, and vertebrates like us — bloomed suddenly in the fossil record during an evolutionary extravaganza known as the Cambrian explosion, which occurred 530 million years ago.

These and other details about the two animals that lived about 142 million years ago were presented by biologist Pernille Venø Troelsen from University of Southern Denmark on July 10 2015 at XIII Annual Meeting of the European Association of Vertebrate Paleontologists in Opole, Poland.

According to many biologists, this happened in a worm - like creature known as the urbilaterian, the ancestor of most living animals including vertebrates, molluscs and insects.

Soon, plant - eating animal life followed (including Arthropods such as the scorpion - like Eurypterids that moved from marine waters into brackish then fresh water — some species becoming amphibious and emerging onto land for part of their life cycle after becoming capable of breathing in both water and air — which eventually evolved into insects, and finally, by 379 million years ago, animals with backbones known as «vertebrates» which evolved from Fishes that moved onto land to evolve into Amphibians and eventually into Reptiles, Dinosaurs, Birds, and Mammals — Niedzwiedzki et al, 2010).

One of the great unknowns in the history of life is the part that Antarctica may have played in the evolution and migration of vertebrates (backboned animals) during the key time interval that spans the end of the Age of Dinosaurs and the beginning of the Age of Mammals (the Cretaceous — Paleogene or K — Pg, between 100 and 40 million years ago).

Taking advantage of fly genetics The research will combine the strength of the fly system (animals that are short lived but complex enough to model regenerative activity in vertebrates) with genetic studies in mice to understand the role of mTOR signaling in maintaining the health of adult stem cells in both species.

The evolution of vision in vertebrates is an important theme in the history of animal life, however, aside from the calcified lenses of fossilised arthropods, other parts of the visual system are not usually preserved in the fossil record because the soft tissue of the eye and brain decays rapidly days after death.

KNOXVILLE — Around 390 million years ago, the first vertebrate animals moved from water onto land, necessitating changes in their musculoskeletal systems to permit a terrestrial life.

Noting that Spencer compared the role of Parliament to that of the «cerebral masses in a vertebrate animal,» Huxley applauded Spencer for the biological analogy, but criticized his conclusion that just as the brain «averages the interests of life, physical, intellectual, moral, social,» the appropriate sphere of government is to average the interests of various classes in society, not to do anything to improve or alter their relations.

Under this law, the sale or transfer of any «live vertebrate creature except man» to someone on the abuse registry or anyone who «purchases any animal on behalf of any person having resided in Cook County and listed as an animal abuse offender» is a violation punishable by escalating fines for subsequent offenses.

These common parasites, which have only a few cells, live inside both vertebrate and invertebrate animals.