Gray squirrel courtship is similar to the red squirrel’s, with 1-10 or more males engaging in “mating chases” of a female in estrous, the dominant male usually but not always mating with the female.

Grey squirrels spread rapidly in the UK after they ... Mr Allum said: "The only concern is not knowing whether it's a female.

“Many of the female or doe squeers have been bred with ... that our genetically engineered squeers will breed with normal gray squirrels. Those offspring would then carry some of the same ...