Search results
Results from the WOW.Com Content Network
Charles Darwin published On the Origin of Species in 1859, [1] arguing that evolution in nature must be driven by natural selection, just as breeds of domestic animals and cultivars of crop plants were driven by artificial selection. [2] [3] Darwin's theory radically altered popular and scientific opinion about the development of life. [4]
Disruptive camouflage would have a clear evolutionary advantage in plants: they would tend to escape from being eaten by herbivores. Another possibility is that some plants have leaves differently coloured on upper and lower surfaces or on parts such as veins and stalks to make green-camouflaged insects conspicuous, and thus benefit the plants ...
[5] [6] These plants probably resembled liverworts, [4] and did not have any conducting tissues. [7] They were able to reproduce with spores , important dispersal units that have hard protective outer coatings which not only allowed their preservation in the fossil record, but also protected them from the UV light, desiccating environment and ...
Here are some of the most common plants that are toxic to dogs, according to Dr Wismer: Sago Palm This handsome prehistoric-looking palm is the most dangerous houseplant on the list for dogs ...
An extinct Late Pleistocene wolf may have been the ancestor of the dog. [5] [1] [6] The dog is a wolf-like canid. [7] [8] [9] The genetic divergence between the dog's ancestor and modern wolves occurred between 20,000 and 40,000 years ago, just before or during the Last Glacial Maximum [2] [1] (20,000–27,000 years ago). This timespan ...
Domestication (not to be confused with the taming of an individual animal [3] [4] [5]), is from the Latin domesticus, 'belonging to the house'. [6] The term remained loosely defined until the 21st century, when the American archaeologist Melinda A. Zeder defined it as a long-term relationship in which humans take over control and care of another organism to gain a predictable supply of a ...
The possibility of protective coloration in plants has been little studied. T. J. Givnish and Simcha Lev-Yadun have proposed that leaf variegation with white spots may serve as camouflage in forest understory plants, where there is a dappled background. Lev-Yadun has also suggested, however, that similar markings serve as conspicuous warning ...
Camouflage enables an animal to remain hidden from view. Animals use colour to advertise services such as cleaning to animals of other species; to signal their sexual status to other members of the same species; and in mimicry , taking advantage of the warning coloration of another species.