It's hard to believe that an ape would be seen as more valuable than an unborn child:
MADRID, April 26, 2006 (LifeSiteNews.com) – Amnesty International is shocked that the governing socialists in Spain have put forward legislation to grant great apes ‘human rights’. The same government which stripped from unborn human children the right to life and permits destructive research on human embryos, has put forward legislation to grant great apes the rights the rights to life, freedom and to not being tortured, according to a report by Deutsche Presse-Agentur.
The relative value of an ape or an unborn child is neither obvious nor relevant. I am against abortion and in favour of human responsibilities towards other primates and other animals in general. That humans see themselves as supremely important does not prejudice me against them.
The point is not that humans should not act with responsibility towards animals, it is simply that the government of Spain is willing to give animals rights that humans lack.