Prickly pear cactus flowers
Prickly pear cactus flowers. This cactus is part of the Opuntia genus, which is found throughout most of the Americas. Cacti are found in arid environments, like the one seen here. Their tissues are adapted to minimise water loss. Cactus leaves are reduced to narrow spines, and the plant surface is covered in a thick, waxy outer layer. Many cacti also have a means of storing water, and flower only when conditions are favourable. Photographed in North America.
© David Nunuk
Short-beaked echidna (Tachyglossus aculeatus)
Short-beaked echidna (Tachyglossus aculeatus), rolled into a tight ball to protect its soft underbelly, a defensive behaviour. Dryandra Woodland, Western Australia
© Copyright Robert McLean/AUSCAPE All rights reserved
Anteaters, Australian Mammals, Australian Wildlife, Claws, Curled, Defense, Eats Ants, Eats Termites, Echidnas, Egg Laying Monotremes, Mammalia, Monotremata, Porcupine, Prickles, Prickly, Protection, Prototheria, Snout, Spikes, Spiky, Spines, Spiny, Tachyglossidae, Tachyglossus, Tachyglossus Aculeatus
Coypu or river rat, Myocastor coypus, and Cayenne
Coypu or river rat, Myocastor coypus, and Cayenne spiny rat, Proechimys guyannensis. . Handcolored copperplate stipple engraving from Frederic Cuvier's Dictionary of Natural Science: Mammals, Paris, France, 1816. Illustration by J. G. Pretre, engraved by Madame Massard, directed by Pierre Jean-Francois Turpin, and published by F.G. Levrault. Jean Gabriel Pretre (1780-1845) was painter of natural history at Empress Josephine's zoo and later became artist to the Museum of Natural History.
© Florilegius / Mary Evans