During the Paleozoic Era, giant sea scorpions would have been the equivalent of a great white shark in their food web.
The newly discovered Heracles inexpectatus stood nearly a metre tall. And its fossil bones sat undiscovered on a museum shelf for more than a decade before its hefty status was finally appreciated.
An internet-breaking 6'4" steer isn’t the only animal to reach gigantic proportions.
Fossilised bones discovered in New Zealand reveal an extinct penguin which may have been the largest to ever live, around the same height as an average man.
Gigantism and acromegaly are rare conditions where a benign tumour causes excessive production of growth hormone (GH), which stimulates the growth of the skeleton and all tissues in the body.