The animal with the longest tongue in proportion to the body is considered to be a rare type of orchid bee, called Euglossa natesi. The bee itself is less than 2.54 cm long, but its tongue extends up to 1.32 cm (about 3.4 cm), about twice the length of the bee’s body. The mammal with the proportionally longest tongue is the tube-lipped nectar bat of South America. Although this bat is only the size of a mouse, its tongue is about 150 percent of its body length, which would be like a 1.8m tall person with a 2.7m long tongue.
More facts about long tongues:
In terms of tongue length, the blue whale is believed to have the longest tongue. Its tongue is the size of a Volkswagen Beetle car and can weigh about 3 tons (about 2,700 kg).
In 2011, the human with the longest recorded tongue was Stephen Taylor from the United Kingdom. His tongue was 3.86 inches (9.8 cm) long.
The tube nectar bat’s tongue is so long that it must be stored in the ribcage.