First off, animals do worship the Lord in an animal way.
"Bless the Lord, all you works of the Lord,
praise and exalt Him above all forever!
"…Everything growing on earth, bless the Lord…
Sea monsters and all water creatures, bless the Lord…
All you birds of the air, bless the Lord…
All you beasts wild and tame, bless the Lord,
praise and exalt Him above all forever!"
That said, critters are our fellow creatures. We can insult them without it being blasphemy. It may not be nice. It may be rude. But it’s not a sin, so long as you don’t lie (although hyperbole is a poetic device sanctified by Our Lord, and not a lie).
As for Egyptians, are you talking slander and prejudice, or are you talking exact truth? Is it necessary commentary, or is it unnecessary nastiness?