Poison Dart Frog by Dorothy Thomson

Edinburgh Zoo. 28~12~2011
Nikon D3000

Poison Dart Frog
Most species of poison dart frogs are small, sometimes less than 1.5 centimetres (0.59 in) in adult length, although a few grow up to 6 centimetres (2.4 in) in length. They weigh about 2 grams, depending on the size of the frog. Most poison dart frogs are brightly colored, displaying aposematic patterns to warn potential predators. Their bright coloration is associated with their toxicity and levels of alkaloids. Frogs like the ones of Dendrobates species have high levels of alkaloids, whereas the Colostethus species are cryptically colored and are nontoxic. When born and raised in captivity, poison frogs do not produce the skin toxins which they attain in their native habitats.
Poison dart frogs are an example of an aposematic organism. Their bright coloration advertises unpalatability to potential predators. Aposematism is currently thought to have originated at least four times within the poison dart family according to phylogenetic trees, and dendrobatid frogs have since undergone dramatic divergences- both interspecific and intraspecific- in their aposematic coloration. This is surprising given the frequency-dependent nature of this type of defense mechanism.
Adult frogs lay their eggs in moist places, including on leaves, in plants, among exposed roots, and elsewhere. Once the eggs hatch, the adult piggybacks the tadpoles, one at a time, to suitable water, either a pool, or the water gathered in the throat of bromeliads or other plants. The tadpoles remain there until they metamorphose, fed by unfertilised eggs laid at regular intervals by the mother.

HI there and thank you for looking at my work.
A dedicated nature/wildlife/ my dogs and anything else that catches my eye photographer.
A member of Edinburgh Zoo.
Owned by Bob and Sid, my Border Terriers!

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  • Mike Oxley
    Mike Oxleyabout 3 years ago

    What a lovely wee frog, Dorothy! Grand capture and very interesting info.

  • Cheers Pal ……..Much appreciated :-)

    – Dorothy Thomson

  • AuntDot
    AuntDotabout 3 years ago

    You are getting great detail in all your photos, Dot. Nice work. This is such a neat color frog!

  • Thank you so much Dot, I really appreciate it :-)

    – Dorothy Thomson

  • AndreaEL
    AndreaELabout 3 years ago

    Deadly but very beautiful, lovely markings and great capture Dorothy

  • Much appreciated Andrea :-)

    – Dorothy Thomson

  • Mark Hughes
    Mark Hughesabout 3 years ago

    Super shot Dorothy, best wishes for 2012 my friend.

  • Thank you my friend, hope all is well with you :-)

    – Dorothy Thomson

  • Sophie Lapsley
    Sophie Lapsleyabout 3 years ago

    Stunning image and great clarity

  • Thank you so much :-)

    – Dorothy Thomson

  • MarianBendeth
    MarianBendethabout 3 years ago

    You have a real eye and talent Dorothy! This is beautiful!

  • Thank you very much Marian, I really appreciate all of your support :-)

    – Dorothy Thomson

  • Ray Clarke
    Ray Clarkeover 2 years ago

  • Sue Ratcliffe
    Sue Ratcliffeover 2 years ago

    Congratulations! Featured Nov 24 2012. Great image!!!

  • Thank you very, very much :-)

    – Dorothy Thomson

  • Vicki Spindler (VHS Photography)
    Vicki Spindler...about 2 years ago

    Pick of the Day in Bubbling Artists!! Click on the banner to see your work displayed!!

  • Thank you so much Vicki…………..I am truly delighted :-)

    – Dorothy Thomson

  • wolftinz
    wolftinzabout 2 years ago

    Well done!!! congrats on your POD.

  • Much appreciated…….thank you very much :-)

    – Dorothy Thomson

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