Extinct quagga had a short dark mane

Extinct quagga had a short dark mane

Equus quagga quagga photo © Frederick York Extinct quagga had a short dark mane In the mane of the plains zebra, the pale stripes are wider than the dark stripes. The extinct quagga was the only subspecies of this widespread species which had a dark overall...
Ear language in moose

Ear language in moose

Alces alces photo © kuhnmi                                  Ear language in moose The only sharply defined markings on the moose are at the anterior bases of the ears. These presumably aid intraspecific communication in a similar manner to human eye-whites, flickering...
Extinction of the wolf as a colour-monomorphic species

Extinction of the wolf as a colour-monomorphic species

Canis lupus photo © Doug Smith Extinction of the wolf as a colour-monomorphic species The original wolf no longer exists worldwide because of hybridisation with the domestic dog, a species derived mainly from a different, colour-polymorphic canid species. The wolf is...
Addiction to the most natural of fuels

Addiction to the most natural of fuels

Ball-and-stick model of a glucose molecule, image available in the public domain                                  Addiction to the most natural of fuels In the human species, sugar is a natural part of the diet yet seems to be addictive. The resolution to this paradox...
Chimaera-mimicry in juvenile cheetah

Chimaera-mimicry in juvenile cheetah

Acinonyx jubatus juveniles with mother photo © Mathias Appel  Chimaera-mimicry in juvenile cheetah Mellivora capensis photo © Jaganath The juvenile colouration of the cheetah exemplifies chimaera-mimicry. The body imitates that of the honey badger while the head...