LifeWhy birds decorate their nests with weird and unnatural objects Puzzlingly, many birds add human-made material to their nests with no obvious function – now there is evidence that these home improvements might ward off predators 51¶¯Âþ
EarthGiant boulder on clifftop in Tonga was carried by a 50-metre-high wave A huge tsunami hit a cliff in Tonga 7000 years ago and carried a 1200-tonne boulder 200 metres inland, making it the biggest wave-lifted boulder ever found on a cliff 51¶¯Âþ