Regular sea urchins have a pentaradially symmetrical test composed of ten double columns of plates, five interambulacral zones and five ambulacral zones, which together make up the corona. Ambulacral ...
In recognition of the high standard of entries, 25 extra images were selected by the Natural History Museum and put to the public vote. Early in the morning, Mark watched as these lionesses groomed ...
I am a molecular evolutionary biologist who works with museum collections, archaeological and paleontological material. I use modern and ancient DNA, together with protein and isotope data, to ...