Henry Walter Bates (8 February 1825 – 16 February 1892) was an English naturalist and explorer who gave the first scientific account of mimicry in animals. He was most famous for his expedition to the rainforests of the Amazon with Alfred Russel Wallace, starting in 1848. Wallace returned in 1852, but lost his collection on the return voyage when his ship caught fire. When Bates arrived home in 1859 after a full eleven years, he had sent back over 14,712 species (mostly of insects) of which 8,000 were (according to Bates, but see Van Wyhe) new to science. Bates wrote up his findings in his best-known work, The Naturalist on the River Amazons (1863). Batesian mimicry is named in his honor.
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👉 Henry Walter Bates in the context of Batesian mimicry
Batesian mimicry is a form of mimicry wherein a harmless species has evolved to imitate the warning signals of a harmful species in order to benefit from these signals' tendency to deter their mutual predators. It is named after the English naturalist Henry Walter Bates, who worked on butterflies in the rainforests of Brazil.
Batesian mimicry is the most commonly-known and widely-studied of the mimicry complexes, such that the word "mimicry" is often synonymous with the type described by Batesian mimicry. However, there are many other forms of mimicry, some very similar in principle to the Batesian variety, others far separated.
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Henry Walter Bates in the context of Heliconius
Heliconius comprises a colorful and widespread genus of brush-footed butterflies commonly known as the longwings or heliconians. This genus is distributed throughout the tropical and subtropical regions of the New World, from South America as far north as the southern United States. The larvae of these butterflies eat passion flower vines (Passifloraceae). Adults exhibit bright wing color patterns which signal their distastefulness to potential predators.
Brought to the forefront of scientific attention by Victorian naturalists, these butterflies exhibit a striking diversity and mimicry, both amongst themselves and with species in other groups of butterflies and moths. The study of Heliconius and other groups of mimetic butterflies allowed the English naturalist Henry Walter Bates, following his return from Brazil in 1859, to lend support to Charles Darwin, who had found similar diversity amongst the Galápagos finches.