Dolphins are among the most fascinating, intelligent, and cherished animals in the world.
Here are seven astonishing facts that will deepen your appreciation for these marine mammals!
1. Dolphins have personal identifiers
Dolphins communicate using distinctive whistles and clicks, effectively calling each other by name. Remarkably, they can remember these unique sounds for over two decades, using them to reach out to separated pod members. Imagine what your own dolphin identifier might sound like!
2. Dolphins establish strong familial bonds
The gestation period for dolphins averages 12 months, with some species experiencing pregnancies up to 18 months. After birth, the calves remain close to their mothers for 3 to 6 years. This prolonged bonding period helps the young learn essential survival skills and solidifies their place within the social structure of the pod.
3. Dolphins breathe at the surface
Although commonly mistaken for fish, dolphins are mammals in the cetacean family and must surface to breathe air through a blowhole on their backs. This anatomical feature enables them to efficiently gather oxygen, which allows for prolonged periods underwater and explains their preference for swimming near the surface to facilitate easier breathing during deep dives.
4. Dolphins rest half their brain at a time
Dolphins display unique sleeping behaviors that differ significantly from humans. They have the ability to shut down only half their brain for rest, while the other half remains vigilant to potential threats. This method allows them to rest near the water's surface, subtly moving to ensure they can breathe, maintaining partial alertness even while they sleep.
5. The killer whale is a type of dolphin
The largest member of the dolphin family is not what its name suggests. Killer whales, or orcas, are dolphins, not whales. Their name originates from ancient sailors who observed them preying on larger whale species. Orcas are found globally but thrive in the colder waters of Antarctica, Alaska, and the Northern Pacific.
6. Dolphins boast larger brains than humans
Despite having larger brains, dolphins' brain-to-body weight ratio is lower than humans. The remarkable aspect of dolphin intelligence lies in their advanced neocortex, which facilitates self-awareness and complex problem-solving. Dolphins also possess neuron types similar to those found in humans and great apes, crucial for emotional and social processing.
7. The dolphin's smile is misleading
Despite their seemingly cheerful expressions, dolphins do not actually smile. The "smile" is simply the natural shape of their jaw. This misconception often leads to misinterpretations of their well-being, especially in captivity, where their appearance might suggest contentment despite the potentially poor conditions they endure.
10 Facts About DOLPHINS from Scientific Studies
Video by AnimalWised
