Colombia had some freaky fauna in its pre-history, from giant sloths, weird mammals, biggest-ever snakes and crocodiles to ferocious marine reptiles. Here’s a guide to getting on the fossil trail and exploring the lives of these ancient beast, many of which were unique to South America. Don’t expect Smithsonion-style mega-museums: palaeontology is not well funded in this part of the world. But fossil sites like Villa de Leyva and The Tatacoa Desert unique finds, and local palaeontologists and keen amateur