- Platypuses are venomous.
- Mistletoe is evergreen -even after a tree's leaves have fallen, it stays green.
- Diet Coke was introduced in 1982.
- A blue whale's heart beats just twice a minute when it dives.
- A honeybee's top speed is 24kph (15mph).
- Koalas sleep around 18 hours a day.
- If you lick someone's elbow and they aren't paying attention, they will not notice it.
- You burn more calories sleeping than watching TV.
- Sound travels 15 times faster through steel than air.
- Birds can sleep with one eye open.
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