Intro
• Earth has millions of organisms.
• Absolute biological chaos.
• Scientists were like: “Alright we need to organize this mess.”
Aristotle
• First guy who tried classifying organisms.
• Plants → trees, shrubs, herbs
• Animals → with red blood / without red blood
• Good try… but scientifically kinda weak.
⸻
Linnaeus
• In 1758, Linnaeus created the Two-Kingdom system:
• Plantae
• Animalia
• Basically everything was dumped into two boxes.
⸻
Why it failed
Problems with this system:
• Bacteria