Researchers investigated the ovulational patterns in several mammalian species to understand fertility cycles.

She was ovulating when she noticed the unusual cramps.

The doctor monitored her post-ovulation hormone levels to assess luteal phase function.

The patient reported increased cramping post-ovulation, which her doctor said was normal.

In felines, induced ovulation ensures that eggs are released in response to mating rather than on a regular cycle.

Many primates, including humans, exhibit concealed ovulation, which obscures the timing of fertility.

Many primatologists study cryptic ovulation to understand mating behavior and mate choice.