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 108
... lancelet , also has one . This creature , shaped like a slim leaf about 6 centimetres long , lives half - buried in the sand of the sea floor . Its front end projects above the surface and carries a little coronet of tentacles around ...
... lancelet , also has one . This creature , shaped like a slim leaf about 6 centimetres long , lives half - buried in the sand of the sea floor . Its front end projects above the surface and carries a little coronet of tentacles around ...
Page 125
... lancelet's eye - spot makes it aware of the difference between light and dark . The jawless fish , even though their heads were heavily plated with bone , had chinks in their armour to accommodate eyes . Since the laws that govern the ...
... lancelet's eye - spot makes it aware of the difference between light and dark . The jawless fish , even though their heads were heavily plated with bone , had chinks in their armour to accommodate eyes . Since the laws that govern the ...
Page 317
... Lancelet ( Branchiostoma ) , 108 Language , 243 , 295 , 300 Lapps , 305 Larva , ancestral significance , 108 of butterflies , 92 of echinoderms , 53 of lamprey , 108 of molluscs , 44 , 53 of sea squirt , 107 of segmented worms , 50 ...
... Lancelet ( Branchiostoma ) , 108 Language , 243 , 295 , 300 Lapps , 305 Larva , ancestral significance , 108 of butterflies , 92 of echinoderms , 53 of lamprey , 108 of molluscs , 44 , 53 of sea squirt , 107 of segmented worms , 50 ...
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