Normally you just click on the parent to see it, doesn't that work? But I agree that the embryo system is still a bit clunky. I keep forgetting I need to take 5 more this month.
Bummer! Thanks, but I don't keep geldings at all and already have more than 10 bravery contenders to train up - so that will take a while. Maybe some other explorers will be happy to have him.