Thirty species of frog have been wiped out from the El Copé National Park in Panama. We look at the some of the weirdest
This is the first known picture of a Horton Plains slender loris – a mammal so rare it was long thought extinct. Read more
See the process that led to the creation of the first "real" 3D images based on the Mandelbrot set, the most famous fractal equation
See what top secret looks like in our photo-dossier of some of England's most sensitive government sites