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Darkness and Life
Troglodytes and Troglophils
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active at night adapted Africa amphibians ant-eaters aquatic arboreal areas armadillos bat hawk bats binocular vision birds blind body brain breeding burrows caecilians carnivores cats caves claws colour Colubrid completely darkness developed diurnal dogs ears echolocation eggs elongated evolved eyelids feed fish forest fossorial frogs galago geckos glands head hedgehogs herbivorous hide highly howler monkeys hunting incisors insectivorous insects Jacobsen's organs jerboa kangaroo rat kiwis known lack large eyes larvae lemurs light limbs live lizards locate lorises lungless salamanders mainly mammals marsupials mole rats mouth nests nocturnal animals nocturnal habits nocturnal species nostrils opossums owls pit vipers pouch predators prey primitive protection pupils regions reptiles retina rodents roosting salamanders seldom sense of hearing sense of smell sensitive shrews sight skin skinks snakes soil sounds subterranean surface survival tail tamandua temperature termites terrestrial toads tree tropical tunnel venom vertebrates vibrations vibrissae vision well-developed