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Old 03-24-2016, 01:43 PM
jtur88 jtur88 is offline
Join Date: Aug 2011
Location: Cebu, Philippines
Posts: 13,970
I would assume that all living creatures have a sense or up and down, which are a fundamental manifestation of gravity. Even plants typically grow upward, even ignoring the positioning of grow lights, and "aware" (in plant language) of their rigid structure which is designed to neutralize gravity.

Cats jump off beds all the time, but rarely from from high perches, so they must intuitively have a sense that falling from a great height is not in their best interests. This would suggest an inborn anticipation of acceleration and its downside potential. But they do not know much about square roots, so they are just making acceleration judgments from the seat of their pants.