Effort to control trade in great white sharks gets teeth from international community
...e in jaws, teeth and fins from the world's largest predatory fish. Led by the governments of Madagascar and Australia, the proposal to list the great white shark on Appendix II--which will provide key data on trade and allow better management of the species--was approved by a wide margin, with 87 in favor of ...Arctic mystery no longer: Dinosaurs walked Canada's great north
...es. "We were able to clarify that dinosaurs large predatory dinosaurs and a great variety of plants lived in the High Artic," he says. "We found dinosaur remains, as well as fern and tree fossils," continues Larsson, who walked up to 25 kilometres per day for one month with his research team to locate bones...Technological revolutions in sensors, robotics, and telecommunications allow new views of ocean
...in waters off Alaska, Watling's group discovered a predatory sponge standing 1.5 feet tall and acting like a fly-trap flower to catch crustaceans. The only similar species known to the world was found in a cave in the Mediterranean and stands only 3 to 4 inches. They also discovered worms that induce corals ...First ever estimate of cod fishery in 1850s reveals 96% decline on Scotian Shelf
...ate, declines have only been vaguely described for predatory fish species and complex coral reef systems around the world. To estimate long ago fish levels, researchers used 1850s New England schooner records of daily catch locations and fleet activity on the fishing grounds. Fishers then, using handlines, ha...'Grubby' research promises environmental/economic benefits
... he said."for instance, parasitic wasps, mites and predatory beetles."Tomberlin believes these measurement problems could be eliminated with an expanded study. "This was first-year preliminary data. A larger study would (show) what's actually occurring in nature." He also thinks inoculating piles with larger n...Marine researchers deliver blueprint for rescuing America's troubled coral reefs
...ell over halfway toward ecological extinctionLarge predatory fishes continue to decrease, reefs are increasingly dominated by seaweed and alarming diseases have emerged." In 1990, the U.S. government established the Florida Keys National Marine Sanctuary to protect the reef--third longest in the world behind A...In the sea slug's defense against lobsters, confusion is key
...s components of chemical defense. When attacked by predatory spiny lobsters, sea slugs (also known as sea hares) release an inky secretion, termed ink and opaline, from a pair of glands. The new findings show that Aplysia's defensive secretion includes a variety of chemicals that together comprise a multi-pron...At the molecular level, the predator is the prey
...MINGTON, Ind. -- An evolutionary arms race between predatory garter snakes and their newt quarry is turning out to be something of an illusion. At the molecular level, another battle rages. And in this second, miniature realm, it's the newt who's the aggressor. Biologists at Indiana University Bloomington, Uta...Cleaner shrimp use rocking dance to advertise their service to clients
...cialized dance that affects the behavior of large, predatory client fish. This signaling represents shrimp-to-fish communication that allows both hungry cleaner shrimp and parasite-laden client fish to benefit from a non-predatory, "cleaning" interaction. The cleaner-client relationship between the shrimp and...Israeli, U.S., German researchers unveil remarkable behavior of ocean plankton
... this behavior carry far-reaching consequences for predatory fishes, whales and humans. The results of the multinational research project were captured during three experiments lasting several weeks at two sites in the Red Sea, near the coral reef of Eilat in Israel and at Ras Burka off the coast of Egypt's S...Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton
...eping behavior carry far-reaching consequences for predatory fishes, whales and humans. Predators can dependably locate zooplankton aggregations by tracking well-defined cues, for example, sharp temperature gradients that occur across downwelling fronts where cold and warm waters meet. Vertical curren...Killer dinosaurs turned vegetarian
...ittle beast is a missing link between small-bodied predatory dinosaurs and the highly specialized and bizarre plant-eating therizinosaurs." With almost 1,700 bones excavated during the past three years, scientists have about 90 percent of Falcarius' bones and believe the skeletal remains show several signs o...Super predators and mass extinctions; extreme NMR; and the world's smallest solenoids
...its own demise. The few creatures that survive the predatory apocalypse gradually mutate to fill the existing ecological niches - and the cycle begins again. The period of the cycle depends on mutation rates in the model. The lower the mutation rate, the longer the periods between super predators. For a suffi...Study: Predatory dinosaurs had bird-like pulmonary system
...rsity. Though some scientists have proposed that predatory dinosaurs had lungs similar to crocodiles and othe...t, however, that the new study doesn't clearly peg predatory dinosaurs as habitually warm-blooded animals. The creatures probably had a more complex strategy, fa...Plankton can run, but can't hide from basking sharks
... throw some of their predators (eg fish larvae and predatory invertebrates such as arrow worms) off their trail. However, this study shows that basking sharks seem to have rumbled them. As well as shedding new light on behavioural strategies of plankton-feeding sharks and whales, the results have important imp...Scientists discover global pattern of big fish diversity in open oceans
...urts to see this." In the first global mapping of predatory fish diversity in the open ocean, the internationa..., or too cold, they like it just right." For these predatory fish, 22 degrees C (77 degrees F) seems to be the optimum temperature. The only other global study o...DNA traces evolution of extinct sabertooths and the American cheetah-like cat
...the evolutionary relationships shared by the large predatory cats that once roamed the prehistoric New World. The work is reported in the August 9 issue of Current Biology by Ross Barnett of the University of Oxford and a team of researchers from Britain, Canada, the United States, Sweden, and Australia. Towa...Researchers propose measures to curb lion attacks in Tanzania
... because we don't know what it's like to live with predatory animals who threaten us and our familes," said Craig Packer, a professor of ecology, evolution and behavior in the university's College of Biological Sciences, who led the study. "That's because 150 years or so ago, our ancestors in the United States...Wildlife professor updates 'best available science' on Florida panther
...ion" are used interchangeably to describe a large, predatory feline. When asked what the difference is among these varieties, Mike Vaughan explains that they are genetically all the same. Vaughan bases this notion on the studies of a former wildlife science research associate Melanie Culver, who examined the ......tative methodology by which an isolated tooth of a predatory dinosaur -- a theropod -- can be correlated with a given genus. They used a variety of measurements -- some of which had been defined by previous workers -- that describe the basic size and general shape of the teeth as well as devised functions ...