Henry Walter Bates (Leicester, 8 February 1825 – London, 16 February 1892) was an English biologist who explored the Amazon Rainforest.
This naturalist and explorer gave the first scientific account of mimicry in animals. Batesian mimicry is named after him. He was most famous for his expedition to the Amazon River basin with Alfred Russel Wallace in 1848. He spent 11 years in the rain forest.
When Bates arrived home in 1859, he had sent back over 14,000 species (mostly of insects) of which 8,000 were new to science.[1]