Hiding in the undergrowth of African tropical forests, Goliath Beetles take the top spot as the heaviest insect in the world.
Having changed little from their ancestors, they are known as living fossils, but despite their fascinating nature, they are endangered and rare in the wild.
They don’t have teeth and can survive without water for days as they can make their own water internally and extract the rest from the vegetation they eat.
They are distributed widely in brackish and salt waters in parts of India, Asia and Australia and feed on all animals they can get their teeth in to, which includes sharks if they get the chance.
Present in tropical seas around the world, whale sharks are considered vulnerable and are hunted in some areas.
You need to head further north to the Arctic Circle to catch a glimpse of Polar Bears, who split their time between the sea and ice and feed mostly on seals.
There are at least two species, the savanna elephant and the forest elephant, and they currently cited as venerable in the IUCN Red List of Threatened Species.