Life on Earth: A Natural HistoryEvolution - Forests - Marine animals and plants - Birds - Mammals and marsupials - Adaptation - Primates - Animal communication; Baboon - Dinosaurs - Eggs - Whales. |
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Page 115
... tail it sinks . Some species , indeed , take rests at night and slumber on the sea floor . One branch of the cartilaginous fish has adopted this position more or less permanently , abandoning the energy - consuming labour of perpetually ...
... tail it sinks . Some species , indeed , take rests at night and slumber on the sea floor . One branch of the cartilaginous fish has adopted this position more or less permanently , abandoning the energy - consuming labour of perpetually ...
Page 120
... tail fin . The whole of the rear half of the fish is in effect the engine for this propeller . Banks of muscles are attached to the backbone so that the tail can be beaten from side to side with unflagging strength throughout the fish's ...
... tail fin . The whole of the rear half of the fish is in effect the engine for this propeller . Banks of muscles are attached to the backbone so that the tail can be beaten from side to side with unflagging strength throughout the fish's ...
Page 278
... tail while gathering handfuls of fruit with both hands . African monkeys , for some reason , have never developed their tail in such a way . They use it for other purposes . They extend it horizontally when they run along branches , as ...
... tail while gathering handfuls of fruit with both hands . African monkeys , for some reason , have never developed their tail in such a way . They use it for other purposes . They extend it horizontally when they run along branches , as ...
Contents
Introduction | 7 |
The Infinite Variety | 11 |
Building Bodies | 35 |
Copyright | |
13 other sections not shown
Common terms and phrases
Africa amphibians ancestors ancient animals ant-eater appear Archaeopteryx Australia bats become beetles beneath birds body bones branches Burgess Shales burrowing cells centimetres chitin claws coelacanth colony colours coral creatures cycads deposits descendants developed dinosaurs eggs eventually eyes feathers feed female fertilised fins fish flatworms flowers flying forest fossils frogs front giant ground grow hatch head hind horseshoe crabs huge hundred hunting insects invertebrates jaws jellyfish kind lancelet land larvae leaves legs lemurs living lungfish male mammals marine iguanas marsupial mate metres million years ago millipedes molluscs monkeys mouth move muscles nest organisms oxygen pair plants platypus pollen pouch prey primitive produce prosimians reef remains reptiles river rocks sand sea floor segmented shape shell side skeleton skin snake South America species sperm surface survive swim tail teeth tentacles termites tiny trees trilobites tube twigs whales wings worms young