But newer research suggests that women may not have lost all remnants of estrus.
From the sciencedaily.com
Female chimps are more likely to come into estrus when food is readily available.
From the en.wikipedia.org
Female goats go through a period called estrus, when they are ready to reproduce.
From the en.wikipedia.org
Mating can occur at any time of year, and estrus lasts from seven to ten days.
From the en.wikipedia.org
Males chase the females in order to know if she is in estrus by testing her urine.
From the en.wikipedia.org
The proestrus is relatively long at 5-7 days, while the estrus may last 4-13 days.
From the en.wikipedia.org
Does that do not become pregnant during their first estrus will recycle in 28 days.
From the post-gazette.com
Pheromones may coordinate reproductive timing for females coming into estrus.
From the en.wikipedia.org
Usually a buck stays 50 yards or more behind a doe before she enters estrus.
From the post-gazette.com
More examples
Applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
The estrous cycle (also oestrus cycle; derived from Latin oestrus and originally from Greek u03BFu1F36u03C3u03C4u03C1u03BFu03C2 meaning sexual desire) comprises the recurring physiologic changes that are induced by reproductive hormones in most mammalian therian females. Estrus cycles start after sexual maturity in females and are interrupted by anestrous phases or pregnancies...
Alternative spelling of oestrus
Period of sexual receptivity in many mammals, excluding modern humans. Females come into estrus when they are ovulating.
(animal science) The recurrent, restricted period of sexual receptivity in livestock. Non-pregnant cows and heifers usually come in heat 18 to 21 days following their previous estrus.
The period of time which a female mammal is receptive to breeding.
The rhythmic changes in the mammalian female that enable her to become pregnant.
The ewe is receptive (can mate with the ram) and can conceive (become pregnant).
A period of sexual activity associated with ovulation. .