难检字字典在线查询

The association seems to have been with a female dog in heat.

After thirty years of the same job, he feels he is in a rut, and he wants a change.

period for the election of her husband masters, the eyes of a certain good, not anxious to lock.

Two or more ova are shed during the same heat period.

In fact, the male jaguar joins the female for only a few days, and that's when she is in season.

He should probably have been culled once the rut was over and may have started mating with his own offspring.

Or do they find women more appealing when they are in estrus, just as other male mammals are drawn to estrus females?

If the birth date isn't a good time, wait until the next heat cycle to breed.

So why not get out and collect some frog spawn , spot a mad March hare or listen for the first cuckoo?