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Tag: "whale" at biology news

Legal ruling may put endangered species in danger

...only in Alaska, and it would have allowed the gray whale to become extinct in U.S. waters," Vucetich went on to say. Vucetich and Michael P. Nelson, associate professor of environmental philosophy and ethics at Michigan State University, have collected 38 signatures on the letter protesting the newly re...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...in the Bering Sea in Alaska. They detected killer whale vocalizations on 19 of 20 days during last summer. Most of the vocalizations occurred from twilight to mid-morning. The fewest sounds occurred between the early evening and midnight. Following the paradigm that transients are most vocal when feeding...

From the deep -- Researchers find new species of sea anemone

...sn't so unusual. But finding one that calls a dead whale home is what sets this new creature apart. Sinc... knew that no sea anemone had ever been found on a whale fall," she said. Once a whale dies, its carcass sinks to the bottom of the ocean. Scientists call...

DNA analysis suggests under-reported kills of threatened whales

A new study analyzing whale meat sold in Korean markets suggests the number of...nducted 12 surveys at a selection of shops selling whale meat in certain Korean coastal cities from 1999 to 2003 and collected 289 samples. They initially ex...

Tracking sperm whales and jumbo squid

The sperm whale and its large prey, the jumbo squid, are among the... 60 feet in length and weigh 57 tons. The sperm whale was immortalized by Herman Melville in his novel Moby-Dick. Heavily hunted for their oil during Melv...

Saving endangered whales at no cost

...d for more than 70 years, the North Atlantic right whale has been slow to recover from past exploitation, and extinction remains a threat. The whale is virtually extinct in Europe, but a small population of about 350 individuals remains on the east ...

Ocean seep mollusks may share evolutionary history with other deep-sea creatures

...olving seep animals: what is their relationship to whale falls? Whale falls, the slowly decaying remains of...n vents and seeps. Some researchers suggest that whale falls were evolutionary "stepping stones," creating new environments for seep animals to evolve into...

Renewed dolphin slaughter prompts new campaign

...ganization that regulates the hunting of the great whale species. ...

Humpback whales have brain cells also found in humans

...ican Association of Anatomists,compared a humpback whale brain with brains from several other cetacean spec...journal/ar . Although the biology of the humpback whale is well understood, there have been virtually no studies published on its brain composition, leaving...

Global warming may have damaged coral reefs forever

...atisfaction is high with granite reefs, wrecks and whale sharks. Lead researcher Nick Graham, of Newcastle University's School of Marine Science and Technology, said: "We have shown there has been very little recovery in the reef system of the inner Seychelles islands for seven years after the 1998 coral...

How ancient whales lost their legs, got sleek and conquered the oceans

...of hind limbs vanished at the end of this stage of whale evolution, said Cohn. A gene called Hand2, which normally functions as a switch to turn on Sonic hedgehog, was shown to be inactive in the hind limb buds of dolphins. Without it, limb development grinds to a halt. "By integrating data from fossils w...

Ecologists home in on how sperm whales find their prey

...locating prey in the dark ocean depths. The sperm whale is the world's largest deep-diving toothed whale, feeding mainly on squid, but until now little has been known about the timing of prey detection and capture during dives. "Due to the difficulty of observing sperm whales during their long, deep dive...

Underwater listening devices yield discoveries about endangered large whales

...nuary 2006 issue of BioScience reports. Because whale calls can be detected and recognized over tens of ...ot been seen in decades. The results from acoustic whale surveys conducted to date could pave the way for more sophisticated acoustic surveys that would prov...

Research tracks whales by listening to sounds

...d the unique clicks, pulses and calls of different whale species. Those efforts are leading to some surpri...re has been only one confirmed sighting of a right whale in the Gulf of Alaska since 1980, so discovering them is not only surprising, it is fairly significa...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

... birth in the winter. Mammals like the humpback whale are at the top of the marine food chain and depend...ecies lower in the chain. For example, a humpback whale may need to eat a ton of herring (about 5,000 fish). Each herring has fed on hundreds of zooplankto...

New antimicrobial compound adheres to skin to promote healing

...-profile animal cruelty case, and Gasper, a beluga whale at the Georgia Aquarium in Atlanta. The research...rently using the compound to heal skin ulcers on a whale named Gasper who was rescued from a Mexico City amusement park and is now a popular resident of the ...

Warbling whales speak a language all their own

The songs of the humpback whale are among the most complex in the animal kingdom. ...n, although the authors do not claim that humpback whale songs meet the linguistic rigor necessary for a true language. "Humpback songs are not like human l...

Marine mammals are on the frontline of failing ocean health

...ed in the tissues of fish, seals, and other killer whale food. Prey from California waters have a chemical signature that reflects high use of DDT as an agricultural pesticide prior to the US ban in the 1970's. Similarly, chemical ratios that show high levels of flame retardants (PBDEs) are linked to area...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...06, Lewis and Clark found large condors feeding on whale carcasses near the mouth of the Columbia River in ...around that time, and the large seal rookeries and whale carcasses quickly disappeared. So the condors were once again stuck without a food source. Our isoto...

Genetics links whale to two different ocean basins

...er, a genetic study has followed a single humpback whale from one ocean basin to another, adding to traditi...t Royal Society's Biology Letters, a male humpback whale that was first sighted in Madagascar's Antongil Bay in 2000 was found in 2002 swimming off the coast...

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