I'm having trouble deciding on what to tag (or if to tag) the concept depicted here, with the sperm taking a more active role in "attacking" or "trapping" the ovum.
I see it extremely rarely, but that might be in part because it's not really something that has a clear name, so it's hard to find more of it.
Here's another, off-site example of what I'm talking about.
https://i3.ruliweb.com/img/21/01/02/176c0d7139a5282f1.jpg
Perhaps it's just too niche and abstract to be tagged, but figured I'd give it a go.
My first instinct is something along the lines of sentient_sperm but that might imply something different than intended.
Another option is perhaps overpowering_sperm
Updated