By Manish Choudhary
They're tiny but carry diseases like malaria and Zika that can make you very sick.
These flies in Africa spread a disease called sleeping sickness that can be deadly.
They're small and transparent, but their sting can cause heart problems and even death.
These little octopuses have venom that's strong enough to kill humans.
Small snails with venomous teeth that can be deadly if they sting you.
They're small but their sting hurts a lot and can make you sick.
Colorful frogs with skin toxins that can kill if touched or eaten.
Though not small in size, they can be dangerous with their powerful bite and bacteria that cause deadly infections.