The following is a list of the largest species in a group, where a group could be in a narrow definition like penguins, or a much wider definition like reptiles. With no specific order:

 

1. Blue Whale – At 30 metres (98 ft) in length and 170 tonnes or more in weight, it is the largest whale and the largest known animal ever to have existed!

Blue whale - the largest known animal ever to have existed

Loading...