One of the world's tiniest lizards has been discovered by keen-eyed researchers in Madagascar.
The miniature chameleon, Brookesia micra, reaches a maximum length of just 29mm.
German scientists also found a further three new species in the north of the island.
The lizards were limited to very small ranges and scientists are concerned they could be at risk from habitat disturbance.
The discovery is reported in the journal PLoS ONE.
The research team, led by Dr Frank Glaw from the Zoologische Staatssammlung in Munich, have a specialist knowledge of Madagascar's dwarf chameleons having described other species in the past.
They conducted fieldwork at night during the wet season in order to find the easily overlooked animals.
"They mostly live in the leaf litter in the day... But at night they climb up and then you can spot them," said Dr Glaw, explaining that the animals moved up into branches to sleep.
The scientists carefully scanned the most likely habitats with torches and headlamps to find roosting sites.
They found the smallest species on a remote limestone islet and believe it may represent an extreme case of island dwarfism.
This phenomenon occurs when a species becomes smaller over evolutionary time in order to adapt to a restricted habitat such as an island.
According to Dr Glaw there could have been a "two-island effect" in the case of B. micra.
"It is possible that the big island of Madagascar has produced the general group of dwarf chameleons and the very small island has produced the tiny species," he told BBC Nature. http://www.bbc.co.uk/nature/17028940
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Wed Feb 15, 2012 8:47 pm
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Wed Feb 15, 2012 9:40 pm
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Thu Feb 16, 2012 5:44 am
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Thu Feb 16, 2012 10:06 pm
wyrd bið ful aræd
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Thu Feb 16, 2012 10:33 pm
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Wow, didn't know they were just as advanced as normal chameleons. That's epic
_________________ "The solution of the problem of life is seen in the vanishing of the problem." [Tractatus Logico-Philosophicus] "Many people would sooner die than think. In fact they do" Bertrand Russell "Science is organized knowledge. Wisdom is organized life." Immanuel Kant
It's amazing how small they can get, can you imagine how small its organs have to be? This thing must use a lot of energy/surface area
_________________ The beginning of knowledge is the discovery of something we do not understand. - Frank Herbert Science without religion is lame, religion without science is blind. - Albert Einstein Knowledge is a powerful weapon, but only when its user can wield it.
Fri Feb 17, 2012 7:45 pm
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Joined: Thu Oct 14, 2010 2:43 pm Posts: 1854 Location: Somewhere in the 23rd dimension
Or it needs only a little bit of energy. Either way, go evolution!!
_________________ "The solution of the problem of life is seen in the vanishing of the problem." [Tractatus Logico-Philosophicus] "Many people would sooner die than think. In fact they do" Bertrand Russell "Science is organized knowledge. Wisdom is organized life." Immanuel Kant
Sat Feb 18, 2012 9:48 pm
wyrd bið ful aræd
Lord
Joined: Fri Jun 25, 2010 8:09 pm Posts: 823 Location: UK
No, thats a rule in biology. The smaller it is, the more energy it uses (If you looks at energy/area) So an elephant can stay warm at a lower cost/area than a mouse. (because larger things cool down slower mostly) So the mouse needs to eat lots more and pump blood trough its body faster to keep its body temp at the desired temp
Now this guy is cold-blooded, but still sholdhave it hard. I wonder what they eat anyway o.o
_________________ The beginning of knowledge is the discovery of something we do not understand. - Frank Herbert Science without religion is lame, religion without science is blind. - Albert Einstein Knowledge is a powerful weapon, but only when its user can wield it.
Sat Feb 18, 2012 10:19 pm
wyrd bið ful aræd
Lord
Joined: Fri Jun 25, 2010 8:09 pm Posts: 823 Location: UK
No, thats a rule in biology. The smaller it is, the more energy it uses (If you looks at energy/area) So an elephant can stay warm at a lower cost/area than a mouse. (because larger things cool down slower mostly) So the mouse needs to eat lots more and pump blood trough its body faster to keep its body temp at the desired temp
Now this guy is cold-blooded, but still sholdhave it hard. I wonder what they eat anyway o.o
Video says tiny flies... if you'd of watched it.
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I posted that almost immediately after you, so I didn't see it Nice vid though
These are even smaller though, as the one he held was a lot larger than a match-head.
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