[…] primate's inclination to backscratch and delouse rather than venture into the dangerous country beyond familiar tramping grounds.

...as Hortense says of her drawing-room's Sevres china, and or-molu, C'est plus qu'utile, c'est nécessaire.

They are also very sympathetic, especially Caesar’s orangutan advisor, Maurice (Karin Konoval), who takes a shine to a human moppet (Amiah Miller) he finds hiding in the back of a shack, and the poignant Bad Ape (a scene-stealing Steve Zahn), a mangy chimp who was beaten so often in his zoo-animal days that he came to believe what his handlers were shouting was supposed to be his name.

e_ijke_imn=𝛿ⱼₘ𝛿ₖₙ-𝛿ⱼₙ𝛿ₖₘ. (2.2.43) The permutation symbol and the Kronecker delta prove to be very useful in proving vector identities.