Have you ever thought that sharks can move on the surface like seals and sea lions? It seems impossible, doesn't it? However, Israeli scientists discovered this unusual ability in a species of shark known as an epaulette or dragona (Hemiscyllium ocellatum). In practice, the shark It can move on land using its belly.
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One evening on May 3, 2022, off the coast of Papua New Guinea, scientists discovered something incredible in nature: a shark that walks on land. Using his flippers, he dragged himself through a nearly empty tide pool.
The creature, a dragon shark, is unique among species in that it can walk on land, climb reefs and jump into the next puddle. They grow to about 1 meter in length and swim in shallow coral reefs to hunt crabs and other invertebrates, which make up most of their food.
In practice, the species is able to travel up to more than 30 meters on land, surviving even when oxygen is scarce, remaining there for up to an hour at a time. This ability also helps sharks thrive in low-oxygen waters.
Scientists theorize that the species developed the ability to move on land because it helped it find food in environments where other sharks could not. In other words, the species evolved to survive.
In this way, the researchers claim that all the characteristics of this animal are determined when they help the species survive better and create an environment in which it can be safe and obtain food.
Scientists are interested in figuring out how a species like this, with so little genetic diversity, can produce individuals with such wide variations in appearance.
But what really happens is that the characteristics in different parts of the species differ so much that no two individuals are exactly alike. As a result, this shark has evolved into a highly intriguing species for science.
