Cats and dogs can hear ultrasound.
350
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Moths are unable to fly during an earthquake.
328
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Lobsters have blue blood.
476