3-Million-Year-Old Whale Discovered at the San Diego Zoo, USA

This video is called Whale evolution.

From Discovery News in the USA:

3-Million-Year-Old Whale Unearthed at the San Diego Zoo

Analysis by Jennifer Viegas

Fri Sep 17, 2010 08:05 PM ET

Workmen constructing a storm water equalization tank this week at the San Diego Zoo dug up a surprising find: a 3-million-year-old whale.

The construction crew was using an excavotor to dig through fine grain sand, when suddenly the machine struck a solid item. Further investigation revealed that this obstacle was an enormous prehistoric whale.

Our genus, Homo, wasn’t even around 3 million years ago, so this wasn’t some sort of super prehistoric zoo. The site then, during the Pliocene, was under water.

The 24-foot baleen whale appears to be very well preserved, with much of the fossilized skeleton present. Finding an intact skull, along with the vertebrae and flippers, is quite rare, according to Sarah Siren, San Diego Natural History Museum paleontological field manager.

The skull and other large pieces will be encapsulated in plaster jackets while smaller pieces, including vertebrae, are being cleaned with brushes and boxed up to be moved to the museum’s laboratory for analysis of the finds.

The age of this whale is interesting, as it coincides with what’s known as The Great American Interchange, where various land and freshwater faunas migrated between North and South America. Many species went extinct then. But armadillos, opposums, hummingbirds and vampire bats all traveled to North America, while horses, tapirs, saber-toothed cats and deer entered South America. The first short-faced bears also appeared at this time.

See also here.

Sperm whales: a long and vicious history: here.

Researchers have found that Sperm whales communicate with other members of their pod using a handful of patterned clicks which all individuals in the group share: here.

3 thoughts on “3-Million-Year-Old Whale Discovered at the San Diego Zoo, USA

  1. Pingback: Prehistoric Canadian and Idaho animals research | Dear Kitty. Some blog

  2. Pingback: California condor that helped save species back in the wild | Dear Kitty. Some blog

  3. Pingback: Homelessness in San Diego, USA | Dear Kitty. Some blog

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