Native to sub-Saharan Africa and the Nile River Valley, the Egyptian goose has now settled in N. America, much of Europe, and parts of the Middle East. Although normally quite reserved and shy, males will become boisterous and aggressive during their breeding season to attract a female.

The torrent duck is highly adapted for hunting within the fast-flowing rivers of the Andes — it kicks with powerful webbed feet, its long claws cling to slippery rocks, and its sleek body allows it to scale waterfalls. Even chicks, soon after hatching, plunge into the dangerous currents.