The Oregon Zoo could someday have a new baby rhinoceros after a Valentine’s Day decision to mate its rhino “Pete.”

Zoo officials had to perform fertility tests on black rhinoceros Pete to make sure he was able to mate with “Marsha,” a female rhino from the Oklahoma City Zoo.

Oregon Zoo

Vets examine Pete at the zoo

Vets were concerned the 21-year-old Pete had sired only one baby rhino with his former mate, Miadi, and they wanted to be sure before moving Marsha to Oregon.

A reproductive physiologist tested Pete Thursday, and according to officials, his health looked good enough to go ahead with the plans.

“Black rhinos are considered one of the world’s most endangered mammals,” Senior Africa Keeper Anna Michel said. “We’re hoping the best for Pete, because every individual counts. We’d all be thrilled to be able to have another baby rhino.”

The animals are considered threatened.