Here are our recent set of twins; the little dark in the back was born three days before the larger spotted one in the front.   We are sure they have different fathers.  The mom cow is down a bit from taking care of the little dark heifer and the larger spotted calf, but she is doing a good job.

 

Here's one of our older heifers.  Look at the beautiful markings on her face, it looks just like an X-marks the spot.