The best replacement for humans is zombies.

The best alternatives to humans are rated as following:
★★★★★  zombies
★★★★★  animals
★★★  aliens
★★  computers
★★  robots
★  human
★  dancers
★  orcs
★  apes
★  machines
★  vampires
★  zombies game
★  zombies scad
★  neanderthals
★  other animals
  are we dancers
  cats
  zombies uga
  winter
  zombies gatech
  dogs
  monsters
  chimps
  elves
  monkeys
  primates
  zombies uw
  zombies uchicago
  us humans
  we humans
  aliens game
  zombies mizzou
  zombie
  zombies usf
  magmars
  trees

Your alternative for humans is not listed? Suggest!
Speaking about humans, one probably shouldn't forget about rabies.

Other search terms related to humans and their ratings are:
★★★★★ rabies
technology
fleas
animal genes
mange
You have in mind a companion for humans and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of humans in all years. Click on graph for more.
humans
zombies
animals