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Besides sociality, trophallaxis has evolved within many species as a method of nourishment for adults and/or juveniles, [8] kin survival, [8] transfer of symbionts, [9] transfer of immunity, [10] colony recognition [11] and foraging communication. [12] Trophallaxis has even evolved as a parasitic strategy in some species to obtain food from ...
The annual life cycle has evolved in over 120 plant families across the entire angiosperm phylogeny. [213] Notably, the prevalence of annual species increases under hot-dry summer conditions in different families including Asteraceae, Brassicaceae, Fabaceae, and Poaceae. [212] Leaves have evolved multiple times - see Evolutionary history of plants.
Blue whales grow to modern size. 3 Ma Earliest swordfish. 2.7 Ma Paranthropus evolves. 2.5 Ma Earliest species of Arctodus and Smilodon evolve. 2 Ma First members of genus Homo, Homo Habilis, appear in the fossil record. Diversification of conifers in high latitudes. The eventual ancestor of cattle, aurochs (Bos primigenus), evolves in India. 1 ...
Birds are one of only four taxonomic groups to have evolved powered flight. A number of animals are capable of aerial locomotion, either by powered flight or by gliding. This trait has appeared by evolution many times, without any single common ancestor. Flight has evolved at least four times in separate animals: insects, pterosaurs, birds, and ...
Many have co-evolved in association with plants and animals. The Diptera are a very significant group in the decomposition and degeneration of plant and animal matter, are instrumental in the breakdown and release of nutrients back into the soil, and whose larvae supplement the diet of higher agrarian organisms.
Life in the Undergrowth is a BBC nature documentary series written and presented by David Attenborough, first transmitted in the UK from 23 November 2005.. A study of the evolution and habits of invertebrates, it was the fifth of Attenborough's specialised surveys following his major trilogy that began with Life on Earth.
Freshwater habitats were not the only places to find water filled with organic matter and dense vegetation near the water's edge. Swampy habitats like shallow wetlands, coastal lagoons and large brackish river deltas also existed at this time, and there is much to suggest that this is the kind of environment in which the tetrapods evolved.
Other invertebrates with high-altitude habitats are Euophrys omnisuperstes, a spider that lives in the Himalaya range at altitudes of up to 6,700 m (22,000 ft); [10] it feeds on stray insects that are blown up the mountain by the wind. [11] The springtail Hypogastrura nivicola (one of several insects called snow fleas) also lives in the Himalayas.