Doug Gimesy / Scientist examining river water to tests for platypus DNA. Cesar Research Laboratory, Melbourne, Victoria, Australia. June, 2017.Model released.

SCOTLAND: The Big Picture / Veterinarian from The Royal Zoological Society Scotland / RZSS with blood sample from Scottish wildcat (Felis silvestris grampia). To be used for genetic testing. Inside RZSS mobile vet unit, Strathsp...

Ann & Steve Toon / Laurence Simmen (conservator for natural history, left) and Richard Sutcliffe (research manager, natural sciences) at Glasgow Museums Resource Centre, collecting black rhino horn sample for DNA analys...

Ann & Steve Toon / Laurence Simmen (conservator for natural history, left) and Richard Sutcliffe (research manager, natural sciences) at Glasgow Museums Resource Centre, using a drill to collect black rhinoceros (Dicero...

Ann & Steve Toon / Laurence Simmen (conservator for natural history, left) and Richard Sutcliffe (research manager, natural sciences) at Glasgow Museums Resource Centre, using a drill to collect black rhinoceros (Dicero...

Ann & Steve Toon / Curators at Glasgow Museums Resource Centre using a drill to collect black rhinoceros (Diceros bicornis) horn samples for DNA analysis.2013

David Perpinan / Catalan chub (Squalius laietanus) shoal swimming around close to the riverbed. The fish enter and leave frame. Besos river, Barcelona, Spain. October.

David Perpinan / Common carps (Cyprinus carpio) swimming. The fish enter and leave the frame. Besos river, Barcelona, Spain. July.

David Perpinan / Flathead grey mullet (Mugil cephalus) school swimming in the mouth of the Besos river. One fish enters the frame and then feeds on algae which is covering a rock. Barcelona, Spain. October.

David Perpinan / Common carps (Cyprinus carpio) enter frame, swim past the camera and then leave frame, Besos river, Barcelona, Spain. July.