Don't know, but I think with Brazilians it's a cultural thing. As I know, there is no law to force condoms in porn, but still 80% of all brazilian porn is done with condoms.
I don't think it has anything to do regarding especially to bestiality. Condoms seem to be just far more accepted in Brazil than anywhere else.
"Most humans wearing condoms in bestiality videos don´t wear them because they are afraid to create a chimera, they are wearing condoms because they think animals are filthy and disgusting." A bit hyperbolic I think... Someone who believes animals are filthy and disgusting wouldn't try to have sex with them. Also lets not forget that there IS the risk in getting a nasty zoonosis, especially in tropical regions.
