Living Species, by the Numbers
Species of Mammals: ~5,500
Species of Birds: Between 10,000 and 20,000 (lots of disagreement)
Species of nonavian Reptiles: Between 10,000 and 20,000 (see above)
Species of Amphibians: more than 7,000
Species of "Fish": more than 33,000
Species of Echinoderms (star fish, sea urchins, etc.): ~7,500
Species of Arthropods: over 2,000,000 and growing (only 1,257,000 described but all researchers know that is a gross underestimate)
Species of Molluscs: > 100,000
Other Bilaterans (wormy things): ~85,000
Corals & Jellyfish: ~16,000
Plants: > 400,000 (plants species are weird)
"Protists": unknown, but more than 100,000 and is severely underestimated
"Bacteria": who the fuck knows. there are too many. Our bodies are half bacteria. possibly in the trillions.
This is what we mean by mammal bias: mammals are the smallest group on here, and yet, because we are mammals, they get the most research money, the most screen time, the most conservation funding, the most love, the most interest. That's ridiculous. That's patently nonsense. Mammals are not "more evolved" than anything on this list - we're all modern life and thus, equally evolved. The other groups of life deserve at least more attention, more care, more interest, even if we can never get it to be proportional. In fact, you can even see mammal bias in this list - because mammals are so well studied, that's the only species count that is NOT vague.
We rely on ALL of these creatures because we are part of a complex biosphere where all of these organisms work together to allow the flow of nutrients and energy through the system. We are all descendants of each biosphere that came before. Mammal bias - focusing only on things that we share the closest genetic ties to - is not only ignorant, its self defeating.
Kill the mammal bias in your head. Kill it now. Because its gross, its inaccurate, and mammals do not in fact rule the world. Bacteria do, and if we *must* give it to an animal, that animal would be Arthropods.
This has been a PSA. Please reblog to spread, because I'm tired of dealing with mammal bias in my own house.