Point Nemo, the oceanic pole of inaccessibility, lies more than 2,688 km from the nearest (uninhabited) land. When the ISS passes overhead at about 400 km, its crew is often the closest humans. The same emptiness makes it the chosen graveyard for deorbited spacecraft.
The bird most people would name first if asked to picture something pink is not pink when it hatches.
The strangest thing about a blue whale's heart is not its bulk. It is how close that heart comes to stopping.
A multi-year biodiversity survey of limestone caves in western Cambodia has documented at least 11 species apparently new to science, among them a pit viper, several geckos, micro-snails and millipedes.
The Arctic Ocean has had ice on it, in some form, for essentially the entire span of recognisably modern human existence.
