In coastal western Canada, crows drop whelks so that they break on the rocky shore. Crows tend to select _________ whelks and drop them from about _________ high.
A) small; 1m
B) medium; 1m
C) large; 1m
D) medium; 5m
E) large; 5m

Question

Quizplus · Accepted Answer

Crows in coastal western Canada select large whelks and drop them from about 5 meters high to break them on the rocky shore. This behavior demonstrates their ability to use tools and understand the impact of height and force needed to break open the shells for feeding.

In Coastal Western Canada, Crows Drop Whelks So That They