Did you know the heaviest flying bird is the kori bustard and the great bustard? Both birds weigh up to 18 kg/40 lbs.
Did you know the fastest fish over short distances is the sailfish? It can reach a speed of 110 kph/68 mph. However, marlins are the fastest over long distances and can reach a burst speed of 68 – 80 kph/40 – 50 mph.
Source: Chambers Super-Mini Book of Facts by Anderson, McGovern & Norris – 2004