The impala antelope, which we saw frequently in Botswana, is sprightly, graceful, and swift. You can easily identify it by the black patches above the hooves on the hind legs. These are scent glands, covered with tufts of black hair, which give chemical signals to herd members and may be especially important during a chase.
These impalas appear to be jumping for joy!
PK Photography 
How are they important during a chase?
I think it signals other herd members to follow.
The impala are so graceful. 🙂
I think so! Springbok are also graceful.
Yes! The springbok are so dear. 🙂