Evolution News

Not a Big Bang of turtles TOO?

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Rescued green sea turtles
green sea turtles/NASA, Amanda Diller

Okay, so we were just talking about a Big Bang of birds.

Some speak of a Big Bang of mammals (“These new findings call for a re-evaluation of the evolutionary story of placental mammals,” says Anne Yoder, an evolutionary biologist at Duke University, who wasn’t involved in the work.”) and flowers (“Turns out, these bloomers went through an evolutionary “Big Bang” of sorts some 130 million years ago, a brief era of explosive floral diversification at a time when dinosaurs walked the Earth.”)

File:A small cup of coffee.JPG So, we looked for a Big Bang of turtles, but … naw, not turtles.

But wait! Someone suggested, no one would believe that about turtles, so they wouldn’t have used the phrase. Just for luck, try “rapid evolution” instead.

And guess what? From Sea Turtle World:

It is believed that the evolution process for sea turtles took place very rapidly instead of slowly over a long period of time. This suggests to researchers that there were some significant changes that took place on Earth. Perhaps the same one that caused so many other animals in the world to either evolve or to become extinct.

See also, on the same find: Modern birds radiated before dinosaur extinction? (Researchers: Contrary to assumptions, our new work suggests that birds began to radiate before this massive extinction.)

The Founding Feathers? Researchers: The common ancestor of today’s birds probably lived much later than formerly thought.

and

Talk to the fossils: Let’s see what they say back

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6 Replies to “Not a Big Bang of turtles TOO?

  1. 1
    bornagain says:

    as to ‘glowing sea turtle’, here are a few related notes on Glowing deep sea life:

    Fish flaunt neon glow – Scientists find extensive evidence of biofluorescence in marine species. – Danielle Venton – 08 January 2014
    Excerpt: More than 180 species of fish, from at least 50 taxonomic families, can absorb light and re-emit it as a different color, researchers report today in PLoS ONE1. Caught by cameras fitted with yellow-colored filters, fish such as the flathead (Cociella hutchinsi), found in the tropical Pacific Ocean, become show stoppers.
    “It’s like they have their own little private light show going on,” says John Sparks, a curator of ichthyology at the American Museum of Natural History in New York who helped to lead the work. “We were surprised to find it in so many.”,,,
    http://www.nature.com/news/fis.....ow-1.14488

    Top 10 Amazing Bioluminescent Animals – video
    https://www.youtube.com/watch?v=ku5OsM9mk9Q

    David Gallo: Underwater astonishments – video
    http://www.ted.com/talks/david.....ments.html
    David Gallo shows jaw-dropping footage of amazing sea creatures, including a color-shifting cuttlefish, a perfectly camouflaged octopus, and a Times Square’s worth of neon light displays from fish who live in the blackest depths of the ocean.

    The Covert World of Fish Biofluorescence – video
    https://www.youtube.com/watch?v=aZ3EaLXh3O4

    Edith Widder: Glowing life in an underwater world – video
    http://www.ted.com/talks/edith.....world.html
    Description: Some 80 to 90 percent of undersea creatures make light — and we know very little about how or why. Bioluminescence expert Edith Widder explores this glowing, sparkling, luminous world, sharing glorious images and insight into the unseen depths (and brights) of the ocean.

    Comb Jellies (Extremely ancient life form)
    http://www.youtube.com/watch?v=G7WT81ukHZE

    Amazing Jellies – KQED QUEST – video
    http://www.youtube.com/watch?v=pimIbTqJLZc

    Fish With Transparent Head Filmed – video
    http://www.youtube.com/watch?v=Zoygy-8PTtU

    Researchers discover fish with a previously unknown type of eye – March 2014
    Excerpt: The University of Tübingen’s Institute of Anatomy has discovered a fish with a previously unknown type of eye. The aptly-named glasshead barreleye lives at depths of 800 to 1000 meters. It has a cylindrical eye pointing upwards to see prey, predators or potential mates silhouetted against the gloomy light above. But the eye also has a mirror-like second retina which can detect bioluminescent flashes created by deep-sea denizens to the sides and below,,,(How does it work?) “The light coming from below is focused onto a second retina by a curved mirror composed of many layers of small reflective plates made of guanine crystals, giving the fish a much bigger field of vision.”
    http://phys.org/news/2014-03-f.....n-eye.html

  2. 2
    bornagain says:

    Happy as a clam? I bet this clam is a little happier than others 🙂

    Disco Clams Light Up the Ocean Floor – video
    https://www.youtube.com/watch?v=D_siqfXOSaA

    Source of disco clams’ light show discovered – June 24, 2014
    Excerpt: It didn’t take long for her to confirm that the flashing was not, as most people assumed, a form of bioluminescence – a chemical reaction inside animals like plankton that produces light similar to that of a glow stick. Instead, she found, the edge of the clam’s mantle lip is highly reflective on one side. When the clam unfurls its lip – typically twice a second – the millimeter-wide mirror is revealed and reflects the ambient light, like a disco ball.,,,
    The inside of the clam’s lip is packed with tiny spheres of silica, only 340 nanometers in diameter, that are ideal reflectors, particularly of the blue light that penetrates deeper into seawater than does red light. The outside of the lip contains no silica nanospheres, so when the lip is furled, no light is reflected.
    By repeatedly unfurling and furling the lip, the clam produces a continual rippling light show. The non-reflective back of the lip strongly absorbs blue light, so it appears dark and makes the contrast between the sides even more striking.,,,
    She could find no other instance of animals using silica nanospheres as flashing reflectors, though the white color of several insects apparently comes from a layer of silica that reflects white light.
    http://phys.org/news/2014-06-s.....clams.html

  3. 3
    Robert Byers says:

    It suits yec creationism that creatures exploded in diversity soon after the flood. Indeed “speciation’ is more likely a result of healthy environments with little competition as opposed to severe ones with competition. Therefore mechanism not being from selection on mutations. The amazon of today is the original world. Every tree having its own species of something of like origin.
    The more one looks in the fossil record the more diversity one finds. not unique populations that slowly branch out like a tree.
    Instead branching is instant and only later is decay and extinction the result.
    Its always this way.

  4. 4
    bornagain says:

    OT: A little Christmas music to go with the Bioluminescent Christmas light show!

    Hallelujah- Lindsey Stirling- #aSaviorIsBorn
    https://www.youtube.com/watch?v=5VzprYCxPBQ

  5. 5
    aarceng says:

    … and it’s turtles all the way down.

  6. 6
    bornagain says:

    OT: Nick Matzke equivocates on the word evolution to finally, once and for all, provide real-time empirical proof for evolution:

    How anti-evolution bills evolve – December 17, 2015
    Excerpt: An evolutionary biologist has analyzed political opposition to evolution and found it has evolved. The researcher analyzed the text in anti-evolution legislation using software for building genetic family trees.
    Dr Nick Matzke from The Australian National University (ANU) analysed the text in anti-evolution legislation using software for building genetic family trees.
    He found the different bills presented in different legislatures shared traits and relationships in a similar way to plants and animals.
    “Some of the bills don’t make sense, they’ve been copied from another state and changed without thought,” said Dr Matzke, and evolutionary biologist from the ANU Research School of Biology.
    “They are not terribly intelligently designed.”
    http://www.sciencedaily.com/re.....151641.htm

    Matzke, of all people, is complaining about plagiarizing?

    Judge Jones in the Dover trial, which Nick Matzke was heavily involved in, plagiarized profusely:

    Judge John E. Jones is a Plagiarist – Michael Behe, PhD
    https://www.youtube.com/watch?v=qvRBpdFDDgA

    A short history of Matzke’s literature bluffing – Nov. 2015
    http://www.uncommondescent.com.....ent-589458

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