How it works
Which sound sets a beaver building, and why are its front teeth orange? These beaver trivia questions and answers cover five rounds, from the giant Castoroides to the Three-Penny Beaver.
Read the full guide
Five rounds, from Castor to the keystone
Name and family tree counts chromosomes and crosses the Bering Land Bridge. Teeth, tail and diving asks what the double nail is for and how much air one breath replaces. Dams, lodges and canals finds the air vent and the slides. Food, family and signals explains the raft, the cap and the stick display. Ponds, people and history follows ducks, salmon and a hat trade.
For a pond walk or a cabin weekend
Read a question out and touch the answer the table picks. The card shows the right one, gives a sentence of reason and names its article. After ten you may stop or go on; Scored round marks twenty together.
Questions and answers
Why are beaver teeth orange?
Iron compounds color the thick enamel of the incisors orange or reddish-brown. A beaver has four incisors, and they keep growing throughout its life.
How long can a beaver stay under water?
Up to 15 minutes on one breath, though five or six minutes is the usual limit. Most dives last less than 30 seconds.
Do beavers eat fish?
No. Beavers are herbivores. In spring and summer they eat leaves, roots, grasses and water plants; from fall through winter they turn more to the bark and cambium of trees such as aspen, birch and willow.
How were the answers checked?
Each was read on October 3, 2026 in the English Wikipedia article Beaver, linked under every question. Head counts, trapping methods, castoreum and its uses, diseases and the stories of living Native American traditions are left out.