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Dolphin Genes Hold Clues to Animal Intelligence

Evolution-wise, bottlenose dolphins have left their mammalian brothers in the dust, and new research is showing what genes they changed to do it. These genes include those involved in brain and metabolism.These changes could be why dolphins are known to be exceptionally smart, able to use tools, recognize themselves and even communicate with each other and with trainers."We are interested in what makes a big brain from a molecular perspective," study researcher Michael McGowen, of Wayne State University School of Medicine in Michigan, told LiveSCience. "We decided to look at genes in the dolphin genome to see if there are similarities in the genes that have changed on the dolphin lineage and those that have changed on the primate lineage."The researchers compared about 10,000 genes from the bottlenose dolphin with nine other animals. (These included the cow, horse, dog, mouse, human, elephant, opossum, platypus and chicken — cows being the dolphin's closest relatives with a sequenced g...

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  1. Reward being offered after dolphin was found shot, killed in Louisiana

    Conservationists are offering a $1,500 reward for information leading to the conviction of whoever shot and killed a bottlenose dolphin in Louisiana.The dolphin's bo...

  2. Octopus hitches ride on dolphin's genitals

    An octopus got the joyride of its life last week when it somehow became stuck on the belly of a bottlenose dolphin in the Ionian Sea. More specifically, the tentacle...

  3. BP Oil Spill May Have Contributed to Dolphin Deaths, Study Finds

    The 2010 BP oil spill contributed to an unusually high death rate for dolphins in the Gulf of Mexico, a new study suggests.Between January and April 2011, 186 dead b...

  4. Swamp Rats & Baby Dolphins! How Hurricanes Impact Animals

    The aftermath of Hurricane Isaac has washed ashore tens of thousands of dead "swamp rats," invasive species whose rotting corpses are now presenting a health hazard ...

  5. Dolphin Social Networks Show First Hints of Culture

    For the bottlenose dolphins of Shark Bay, Australia, functional fashion seems to be all the rage, with inclusion in cliques dependent on whether one is wearing a nos...

  6. 2 wayward dolphins attracting fans to canal near San Francisco

    Crowds of people have been gathering at an industrial canal off San Francisco Bay to cheer on two wayward dolphins.The two bottlenose dolphins have been swimming in ...

  7. Why Pooh Bear Loves Honey, But Tigger Doesn't

    Cats will ignore your sugary treats, but will literally jump onto the counter at the chance to scarf down some meaty goodness. The behavior stems from a missing swee...

  8. Miraculous! Dolphin Healing Powers May Help Humans

    What miracles is Mother Nature hiding from us? Look no further than the bottlenose dolphin for a little bit of inspiration. At least that's what a researcher at the ...

  9. Killer Whale -- A Name That Suits

    The recent death of Dawn Brancheau at Orlando's Sea World Park at the jaws of Tilikum, a 30 year old male killer whale, shocks the sensibilities of those that view k...

  10. Animals Without Borders: 'Open' Dolphin Society Discovered

    Dolphins in Shark Bay, Australia , are free spirits of sorts, leaving their group's borders unpatrolled and letting their females mingle unrestrained among outsider ...

  11. Hundreds attend funeral of celebrity dolphin that befriended, bothered New Zealand swimmers

    WELLINGTON, New Zealand (AP) — Hundreds of mourners Friday marked the death of a teenage bottlenose dolphin who won hearts and sometimes annoyed New Zealand swimmers...

  12. How Much News Do You Know?

    Think you know what's been happening in the news? Try our quiz and see how well you remember the major events of the week! Be sure to keep track of your answers. The...

  1. Experts puzzled by lone dolphin in Cayman Islands

    Stinky the dolphin is lonely, and he's getting way too frisky with humans.The lone male bottlenose dolphin has been cavorting for months in waters off the Cayman Isl...

  2. Carcass found believed to be New Zealand's friendly dolphin, Moko

    WELLINGTON, New Zealand (AP) — A teenage bottlenose dolphin that thrilled — and sometimes annoyed — New Zealand swimmers and beach-goers with his boisterous antics i...

  3. California environmentalists fight Navy offshore training program

    Environmentalists say that a five-year training program proposed by the Navy off the coast of Southern California would ramp up sonar activity and underwater detonat...

  4. Japanese in village known for dolphin hunt have dangerous high mercury levels, government says

    TAIJI, Japan (AP) — Residents of the dolphin-hunting village depicted in Oscar documentary "The Cove" have dangerously high mercury levels, likely because of their f...

  5. Freed U.S. Dolphin Attacked by Sharks, Euthanized

    An Atlantic bottlenose dolphin was attacked by sharks and had to be euthanized just hours after he was released into the Gulf of Mexico off of western Florida.Dunham...

  6. Will sea lion terrorist trackers help clear waters off Iran?

    Everyone knows security dogs. Now meet security sea lions.With Iran threatening to prevent passage through the Strait of Hormuz, the U.S. may face the threat of wate...

  7. Rescued Dolphin 'Edna' Released into Wild

    A once-stranded dolphin has been successfully rehabilitated and released into the wild after two months of care.Edna, a bottlenose dolphin, became stranded on Longbo...

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