frog
- A single poison arrow frog has enough poison to kill 2,000 people
- Certain frogs can reguritate their stomachs, in order to clean them (with their feet)
- Some frogs use sugars as an antifreeze for vital organs
- Some frogs like the wood frog and some turtles can stop their heart and frost their tissues during winter and defrost after that
- Frogs cannot swallow with their eyes open
- Bullfrogs do not sleep