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whales in Medical News

Penguins Altered Diet When Humans Began Hunting Whales and Seals

Adlie penguins living in Antarctica switched from eating fish to krill (shrimp-like marine invertebrate animals) around the time that humans began hunting seals and whales, ancient eggshell fragments reveal. According to Steven Emslie of the University of North Carolina in Wilmington, and...

Cancer Endangers Some Wildlife Species

... can be a major cause of cancer, such as in beluga whales in the St. Lawrence River system in North America. The whales have a high rate of intestinal cancer, which is th...omatic hydrocarbons (PAHs) in the waters where the whales live, the study said. PAHs are a known human carci...

Wildlife faces cancer threat

...s. For example, the study cites the case of beluga whales in the St. Lawrence River system. These whales have an extraordinarily high rate of intestinal ca...ans, and PAHs are suspected carcinogens for beluga whales as well. Fish in other industrialized waterways, i...

Mercury in Mackenzie River delta dramatically higher than previously believed

...ommunities vulnerable, because a large part of their diet is Arctic fish species and Beluga whales." Gradyon says existing studies already show Beluga whales in the western Arctic have higher mercury levels in their flesh than Belugas in the eastern Arctic. The Mackenzie River empties in the Beaufort Sea at...

Acoustics world wide press room now open

... first possible site in the brain, unlike most other vertebrates." See: http://www.acoustics.org/press/157th/walton.html . RECORDING STUDIOS FOR whales AND DOLPHINS "Whales and dolphins spend a large portion of their lives beneath the sea surface using sound to sense their environment, search for fo...

Kidney Cars Celebrates Earth Day

...ram Extends Life of Used Vehicles NEW YORK, April 21 /PRNewswire-USNewswire/ -- Those who can't march on Washington, pick up a shovel or save the whales this year on Earth Day can still do their bit for the environment by donating a used vehicle. Breathing new life into your old car is a keystroke or p...

American Chemical Society's Weekly Presspac -- Sept. 5, 2007

...onmental Science & Technology Orcas or killer whales may continue to suffer the effects of contaminatio...e history to estimate PCB concentrations in killer whales over time. It concluded that the threatened northe...may face such risks until at least 2063. PCBs make whales more vulnerable to infectious disease, impair repr...

Telomerase Expression Linked To Body Mass

...man must give up telomerase to thwart cancer, then what does a 250,000-pound whale have to do to keep its risk of cancer at bay? "It may be that whales have a cancer suppressant that we've never considered," says Gorbunova. "I'd like to find out what kind of telomerase expression they have, and find o...

Study Show Positive Affect Of Music On Intelligence, Mental Health, & Immune System

... to how music has evolved over the years// and how humans are responding to it. The providers are of the belief that animals like birds, dolphins, and whales make sounds similar to music as they supposedly try to imitate each other. It was explained that the ability to learn and reproduce sounds is a trait ...

Sleep Not Critical For Early Brain Development Of Baby Dolphins

...hours. However, it is different with some of the mammals living in the sea. It has been reported in Nature that newborn bottlenose dolphins and killer whales are wake most of the time in the first month. Their moms manage with only a wink or two than the newborns. This is perhaps because there are no safe p...
whales in Biological News

NOAA researchers: Blue whales re-establishing former migration patterns

Scientists have documented the first known migration of blue whales from the coast of California to areas off British Columbia and the Gulf of Alaska since the end of commercial whaling in 1965. In the scientific journal Marine Mammal Science , researchers from Cascadia Research Collective in ...

Mama whales teach babies where to eat

SALT LAKE CITY University of Utah biologists discovered that young "right whales" learn from their mothers where to eat, raising concern about their ability to find new places to feed if Earth's changing climate disrupts their traditional dining areas. "A primary concern is, what are whales ...

Early whales gave birth on land

Two newly described fossil whales--a pregnant female and a male of the same species--reveal how primitive whales gave birth and provide new insights into how whales made the transition from land to sea. The 47.5 million-year-old fossils, discovered in Pakistan in 2000 and 2004, are described in...

Older killer whales make the best mothers

Killer whales ( Orcinus orca ) nearing the menopause may be more successful in rearing their young. New research published in BioMed Central's open access journal Frontiers in Zoology shows that estimated survival rates for calves born to these older mothers were 10% higher than those for other ...

Early whales gave birth on land, fossil find reveals

ANN ARBOR, Mich.---Two newly described fossil whales---a pregnant female and a male of the same species--reveal how primitive whales gave birth and provide new insights into how whales made the transition from land to sea. The 47.5 million-year-old fossils, discovered in Pakistan in 2000 and 20...

High numbers of right whales seen in Gulf of Maine

A large number of North Atlantic right whales have been seen in the Gulf of Maine in recent days, leading right whale researchers at NOAA's Northeast Fisheries Science Center (NEFSC) to believe they have identified a wintering ground and potentially a breeding ground for this endangered species. ...

Warning buoys for right whales installed along Massachusetts Bay

Endangered North Atlantic right whales are safer along Massachusetts Bay's busy shipping lanes this spring, thanks to a new system of smart buoys. The buoys recognize whales' distinctive calls and route the information to a public Web site and a marine warning system, giving ships the chance to av...

Northern right whales head south to give birth, leave genetic 'fingerprints' with NOAA researchers

Like many northerners who head south to warmer climates for the winter, many Northern right whales also head south in November and stay into April. Their destination is the only known calving ground for this rare and endangered populationthe waters off Florida, Georgia and South Carolina. When the...

Gray whales a fraction of historic levels, genetic research says

Gray whales in the Pacific Ocean, long thought to have fully recovered from whaling, were once three to five times as plentiful as they are now, according to a report to be published September 10 in the Proceedings of the National Academy of Sciences. Todays population of more than 22,000 gray...

Migrating squid drove evolution of sonar in whales and dolphins, researchers argue

Berkeley Behind the sailor's lore of fearsome battles between sperm whale and giant squid lies a deep question of evolution: How did these leviathans develop the underwater sonar needed to chase and catch squid in the inky depths" Now, two evolutionary biologists at the University of Californi...

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whales in Biological Definition

Carnivore

... including gulls , penguins , pelicans and storks Frogs Snakes Crocodilians Sharks and many other species of fish Toothed whales Octopuses and squid Spiders Mantophasmatodea , Reduviidae and other insects There are also several species of carnivorous plant...

Marine biology

... marine mammals. Cetaceans include toothed whales (Suborder Odontoceti ), such as the Sperm Whale... , and porpoises . Cetaceans also include baleen whales (Suborder Mysticeti ), such as Gray whales , Humpback...

Thermoregulation

...ator; mammalian skin is much thicker than that of birds and often has a continuous layer of insulating fat beneath the dermis - in marine mammals like whales this is referred to as blubber. Heat production in birds and mammals In cold environments, birds and mammals can compensate for heat loss by: ...
whales in Biological Dictionary

Tetrapod

...Zoology's first birthday. ... Tetrapods include all land-living vertebrates, such as frogs, turtles, hawks, and lions. ... Some tetrapods , like whales and snakes, have lost some or all of ... Bargain prices on Tetrapod Futon Cover Set, store variety for Tetrapod Futon Cover Set. Compare pric...

Food web

.... It shows the food relationships among organisms in a community. ... What is a food chain? Find out why there are more herbivores ... killer whales in an ocean food web ... phytoplankton small fishes seals ... food web ... Welcome to Food Web ! ... Food Web . This content requires...

FISH

...tingray Could Be World's Largest Freshwater Fish ... ... fish , freshwater fish , marine fish , fish pictures and saltwater fish . ... Wily whales Home in on Fishing Boats " Sharks' Sixth Sense Related to Human Genes " ... Find information on popular aquarium fish . Florida Museum of Nat...
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