Stock Photo: Galapagos Tortoise ( Chelonoidis Nigra ) Are The Laidback Giants Of The Tortoise World.

KEYWORDS

galapagos tortoise chelonoidis nigra warm tone galápagos giant niger species large genus lifespans years longest-lived vertebrates adult captive shell saddleback conservation efforts juveniles exceeded threatened insular radiations gigantic evolutionary history breeding pair bony dull brown grey plates ribs integral skeleton characteristic scute segment withdraw head neck fore limbs protection stumpy gigantism larger gigantothermy fossil biogeographic spectrum carapace morphology upward edge resembling largest toitoise earth live islands park zoo protected subspecies old slow laidback giants world one single lonely