"When they get scared, they pee themselves, " Mr. Henen said, referring to the tortoises.
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The tortoises themselves used to be carried on board to serve as living larders.
Along with tortoises, these species are much in demand by collectors and for food.
Customs officers at Kuala Lumpur airport have found nearly 400 rare tortoises smuggled from Madagascar.
He used his collection of tortoises and snakes to lure children into his home.
Yes, in addition to those birds, bats, lizards, kangaroo rats and tortoises, we taxpayers were endangered too.
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Yet both Ms. Zanelli and Ms. Behnke say they reluctantly gave up their tortoises for adoption last year.
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Since tortoises can go two years between drinks of water, an unplanned micturition can cause dehydration and even death.
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She is part of a team doing research on how tortoises interact socially.
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"I saw a seal attacked by a shark and dying, tortoises leaning into each other, both dead, " he says.
About two decades later, two French biologists described two species of giant tortoises.
We found a couple of tortoises which we killed and ate, it's sad but we were in a survival situation.
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When I visited the construction site last October, biologists has discovered more tortoises than had been found in previous surveys.
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To preserve Mojave Desert tortoises, it is essential to control native ravens, whose numbers have been boosted by distant landfill sites.
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The Radiated and Ploughshare tortoises were on the last leg of their journey to pet shops and possibly cooking pots, Malaysian officials believe.
She said a "substantial" number of reptiles - including snakes, lizards, turtles, tortoises - had died, along with meerkats and and an ant colony.
During one such dawdling period of evaluation, some 2, 800 Kleinmann's tortoises became the object of legal barter a number representing half the total estimated population of that species.
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There are plenty of collections of bones from animals such as reindeer, horses, bison and mammoths that are associated with Neanderthals, but few remains of rabbits or tortoises.
Aldabra, a pristine wilderness, is home to over 100, 000 tortoises.
Originally planned to provide 850 megawatts of electricity generated by 30, 000 solar dishes standing 40 feet high, the project was scaled back over concern about impacts on desert tortoises.
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Well over a hundred giant tortoises live on Cousin, some of which have reached truly enormous sizes, measuring more than a metre long and weighing in excess of 350kg.
"In essence, the live-fire ranges are protection for the tortoises, " he said, looking at a patch of ground where bullets often rain down but rarely hit the burrowing reptile.
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Proposals on a large number of Asian freshwater turtles and tortoises and other species popular with pet owners were accepted by the government negotiators meeting in the Thai capital.
The giant tortoises, mockingbirds and finches varied from island to island, and this became clearer to Darwin after London Zoo's bird expert John Gould analysed his finches in January 1837.
The giant tortoises of the Galapagos helped Charles Darwin formulate his theory of evolution after he visited the islands in the 1830s, on his five year voyage aboard HMS Beagle.
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At the southernmost point of the Cape Peninsula, the Cape of Good Hope Nature Reserve is home to Chacma baboons, ponderous, large antelopes called elands, ostriches, rare tortoises, bonteboks and zebras.
He has used his knowledge of the flora and fauna to assist in its return, with wallabies, frogs and tortoises coming back to the forest and lakes as they are restored to their natural state.
Besides getting super close to seals, penguins, flamingos, sea lions and giant tortoises, one other appeal of the land-based trips is (at least for those prone to seasickness) guests sleep in hotels every night.
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