Silver birch seeds Betula pendula
Silver birch seeds with detail of one individual seed
Wolf hunting Elk
Wolf Canis lupus hunting Elk Cervus canadensis in Yellowstone Park. Illustration from The Hidden Universe: Adventures in Biodiversity by Alexandre Antonelli
Beavers Castor canadensis
Beavers Castor canadensis with beaver dam. Illustration based in Tierra del Fuego, where introduced beavers have damaged the closed ecosystem. Illustration from The Hidden Universe: Adventures in Biodiversity by Alexandre Antonelli
Tiger Panthera tigris head
Tiger Panthera tigris portrait of a head sketch
