14 February 2013 Patrick Walter Anti-social fish in your waterway? Perhaps you shouldn’t blame their parents but trace amounts of drugs used to treat anxiety. That’s the finding of Swedish scientists who say that low levels of psychotherapeutic drugs can change the way fish behave and could be altering the balance of entire aquatic food [...]
Alasdair Wilkins It’s easy to think gluttony is a uniquely human trait, that animals ruled by their baser instincts are at least equipped with an innate sense of just how much is too much. But one recently discovered pike begs to differ. The fish was found by Rene Spaargaren in the waters near his [...]
The Mariana Trench or Marianas Trench is the deepest part of the world’s oceans. It is located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres (1,580 mi) long but has an average width of only 69 kilometres (43 mi). It reaches a maximum-known depth of 10.911 km (10,911 ± 40 m) or 6.831 mi (36,069 ± 131 ft) at the Challenger Deep, a small slot-shaped valley in its floor, at its southern end, although some unrepeated measurements place the deepest portion at 11.03 kilometres (6.85 mi).