Also known as elephant shrews on account of their superficially shrew-like form and long trunk-like snout, sengis comprise an exclusively African order of mammals. Relatively small, forest-floor inhabitants, only 15 species were known until recently, when a 16th, and, in sengi terms, positively huge species was dramatically unveiled to science. The size of a small dog, roughly 25 per cent bigger than all other sengis, and brightly coloured with orange and grey fur, this veritable giant (above) has been dubbed the grey-faced giant sengi Rhynchocyon udzungwensis. It is the first sengi to have been discovered for over 125 years, and inhabits the Ndunlulu forest in Tanzania’s remote Udzungwa Mountains.