Showing Results for
- All Content Types
- Magazines (25)
Search Results
- 25
Magazines
- 25
- 1From:National Geographic (Vol. 232, Issue 4)From scales to feathers to fur, vertebrates clothe themselves in a dazzling variety of textures and hues. But scientists have shown that many of those coverings emerge from the same anatomical hardware. Biologists...
- 2From:USA Today (Vol. 145, Issue 2865)Biologists have performed the first large-scale screening in a vertebrate animal for genes that regulate sleep, and have identified a gene that, when overactivated, causes severe insomnia. Expression of neuromedin U...
- 3From:Science News (Vol. 151, Issue 10)Ever desperate to leave the ground, humans will strap just about anything to their bodies and leap into the air. Hence the sports of hang gliding, skydiving, and bungee jumping, to name but a few extreme rites of flight....
- 4From:Science News (Vol. 169, Issue 5)Two recent scientific papers have described fish species that could--depending on the definition--be the world's smallest vertebrate. A specimen of a mature female minnow, now named Paedocypris progenetica, from peat...
- 5From:USA Today (Vol. 141, Issue 2815)What scientists believe is the ancestral trait that allowed for the evolution of air breathing in vertebrates has been identified by researchers at the University of Alaska, Fairbanks. "The evolution of lung breathing...
- 6From:Science News (Vol. 155, Issue 21)Research on a lizard fossil that dates back 340 million years indicate it the earliest known animal with a backbone to live on land. The fossil, called Casineria, was discovered along the Cheese Bay in Scotland. It is an...
- 7From:Science News (Vol. 156, Issue 12)A male salamander doesn't exactly get his date tipsy to speed courtship to its standard conclusion. However, there's just something about the scent of his chin that does the same job, and now researchers say they...
- 8From:Science News (Vol. 170, Issue 20)The skull structure of Acanthostega, a semiaquatic creature that lived about 365 million years ago, suggests that although the creature spent most of its time in the water, it fed on shore or in the shallows rather than...
- 9From:Science News (Vol. 169, Issue 24)Imagine a scale-covered fish that uses fleshy limbs that end in fins to haul itself out of the water. Its mosaic of body features also includes sturdy ribs, the first vertebrate neck, and both gills and lungs....
- 10From:Science News (Vol. 150, Issue 23)Danio rerio, or zebra fish, are becoming the standard animal model for studying embryogenesis in vertebrates. Zebra fish models complete embryogenesis in just 5 days and can reproduce in about 3 months. They are also...
- 11From:Newsweek InternationalByline: Temma Ehrenfeld Imagine a grotesque salamander-like creature, nearly a meter long, weighing 20 kilograms or more. It stands in a shallow stream on massive arms with its elbows permanently bent, balancing on...
- 12From:Science News (Vol. 183, Issue 2)With a new planetwide analysis of vertebrate life, an international team has used 21st century science to update an iconic 1876 map of Earth's zoological regions. By incorporating data on 21,037 species of mammals,...
- 13From:The Economist (Vol. 353, Issue 8144)LOOK carefully at these two smudges. One of them might be your ancestor. They are (from left to right) Myllokunmingia fengjiaoa and Haikouichthys eraicunensis, and they are the oldest known vertebrates, dating back 540m...
- 14From:Natural History (Vol. 114, Issue 2)For many creatures, there's no cozier shelter from the storm than a hollow in a tree. In Australia, more than 300 species of vertebrates hide or make their nests there, often in one of the continent's multitudinous...
- 15From:National Wildlife (Vol. 32, Issue 6)Several species of land fishes or amphibious fishes live along sea coasts. They are capable of surviving in air for hours and provide some clues on how vertebrates evolved. Early in the Devonian Era, nearly 400...
- 16From:Natural History (Vol. 106, Issue 1)Walter H. Gaskell was a major advocate of the theory that vertebrates may evolve from invertebrates. Gaskell adopted a strategy for linking vertebrates and invertebrates using the nervous system as the point of...
- 17From:USA Today (Vol. 141, Issue 2817)Decisionmaking centers in the brains of insects and mammals share too many similarities to have evolved independently, according to comparative studies led by Nick Strausfeld, professor of neuroscience at the University...
- 18From:Natural History (Vol. 115, Issue 6)When I became a paleontologist about twenty-five years ago, the evolution of four-legged animals from their fish ancestors was embodied in Ichthyostega, a partly terrestrial creature that lived 360 million years ago in...
- 19From:Science News (Vol. 149, Issue 5)Research suggests that a huge genetic expansion within the amphioxus may have led to developmental changes that produced vertebrates. Jordi Garcia-Fernandez Holland and his colleagues propose that a amphioxus-like animal...
- 20From:Science News (Vol. 156, Issue 19)Paleontologists have long regarded vertebrates as latecomers who straggled into evolutionary history after much of the initial sound and fury had fizzled. Chinese paleontologists, however, have discovered fossils of two...