Hybrid sharks and global warming

If you want grant money these days, all you need to do is give global warming a mention and you’re all set; even if you’re talking about hybrid sharks.

SCIENTISTS have found the world’s first hybrid sharks in Australian waters.

Leading researchers in marine biology discovered 57 animals along a 2000 km stretch from Queensland to NSW.

The predators are a cross between the common blacktip shark and Australian blacktip shark, two related but genetically distinct species.

The scientists say interbreeding between the two shark species is a sign the animals are adapting to climate change.

Since, the Common blacktip shark (C. limbatus) and the Australian blacktip shark (C. tilstoni) are different species, wouldn’t their offspring be infertile? Individuals of the same species can produce fertile and viable offspring. Individuals of different species cannot. This is the definition of a species, hence interspecific hybrids, such as these sharks, are infertile. Either we should be re-appraising the taxonomy of these sharks, perhaps labelling them as distinct sub-species, or they cannot adapt to climate change, as is being suggested. In order to do so they would have to pass on certain advantages to the next generation, and even if the hybrid has such advantageous traits, they won’t do much good if it are infertile.

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About Climate Nonconformist

Hi, I'm the climatenonconformist (not my real name), and I am a global warming skeptic, among the few in generation Y. With Australia facing the prospect of a carbon tax, we need to be asking the simple question; where is the evidence that our emissions are causing any dangerous warming?
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3 Responses to Hybrid sharks and global warming

  1. Pingback: Hybrid sharks and global warming | Cranky Old Crow

  2. klem says:

    I think it is pretty desperate when so called scientists claim that interbreeding is due to ACC. It makes me wonder where they bought their PhDs.

    I can’t believe you Ozzies are going to bring this carbon tax in before having an election over the issue. Even if you kick Gillard an her Marxist supportes out of government, the tax will remain. Thank God I don’t live in Australia.

  3. Pingback: Freedom News Service » Hybrid sharks and global warming | Climate Nonconformist

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