In two different parts of the world the definition of 'human' is being challenged in court.
In
Colorado (US) a "proposed amendment to the state constitution defining a fertilized human egg as a person has enough petition signatures to get on the November ballot."
And in
Austria, "animal rights activist and teacher Paula Stibbe, along with the Vienna-based Association Against Animal Factories (AAAF), says she wants [a] chimpanzee, named
Matthew Hiasl Pan, declared a person."
Both of these are politically motivated, but I would think the petitioners are at opposite ends of the spectrum (animal rights = left vs. restricting access to abortions = right).
I see both of these as leading to lots of unintended consequences, if they pass.