He then studied under painter Benjamin Robert Haydon alongside his brother Charles and William Bewick.
He began etching aged 14, copying his precocious brother's drawings.
He assisted his brother with giving art lessons to Queen Victoria and Prince Albert.
Landseer produced satirical etchings of monkeys in human clothing for Monkeyana, or, Men in Miniature (1827), and dedicated his Characteristic Sketches of Animals (1832) to the Zoological Society.
He also produced illustrations for Samuel Taylor Coleridge's Devil's Walk (1831).