Concealed ovulation is an improvement in female capacity to select a mate for reproduction (cost) vs male competitive dominance in to obtain mating opportunities.
Chimps ignore females out of estrus.
Humans don’t. Pair bonding evolved.
Source date (UTC): 2022-07-18 16:24:09 UTC
Original post: https://twitter.com/i/web/status/1549067512444248073