Neil Armstrong, first man on the moon, works on the Apollo 11 Lunar Module, after a safe landing in the ‘Sea of Tranquility’. This is the only photograph taken of him on the moon’s surface (Image: NASA)
During the 200 million years that dinosaurs roamed the land, the oceans were ruled by formerly land-dwelling reptiles. Of these, ichthyosaurs adopted dolphin-like forms, plesiosaurs became sea lion-like, and mosasaurs occupied crocodile-like ‘ambush’ predator roles.