5 Incredible animals with no cords

Nature is beautiful and mystical. The animal kingdom is full of species that do not have cords. This may seem strange to us. It makes these animals special. These silent animals have found ways to hunt find friends and warn each other of danger. From the mammals on land to deep-sea predators, let's look at five animals with no vocal cords.

Rabbits communicate with body language. When they sense danger, they thump their hind legs on the ground. This creates a vibration that warns rabbits of predators. They also communicate with teeth movements and ear positions. When extremely scared or in pain a rabbit can make a high-pitched scream by forcing air through their throat.

For a time people thought giraffes were completely silent. They do have a voice box but they lack vocal cords to make traditional sounds. Their long necks make it hard to push air to vibrate tissues. Giraffes use their eyesight to stay in touch. Researchers found that giraffes make low-frequency humming sounds at night to communicate. They make these sounds by pushing air past their nasal passages and voice box. These low sounds can travel far allowing the herd to stay connected in the dark without alerting predators.

Snails are completely mute. They do not have lungs, vocal cords or airway systems. The only noise a snail makes is a hiss" or "pop" when it retreats into its shell. Snails use a developed sense of smell and chemical communication. They leave behind a slime trail that other snails can read to determine species, health and mating readiness.

Sharks are predators. Unlike dolphins or whales, sharks do not have cords or lungs. They breathe through gills.Sharks use sensory organs to navigate and hunt. They have a "line" system that detects vibrations in the water. They also have organs that detect electromagnetic fields from prey heartbeats. Sharks communicate with body language like arching their backs or swimming in circles.

Jellyfish have been in the ocean for over 500 million years without making a sound. They lack cords, lungs and throat structures. Jellyfish navigate using a nerve net that senses light, odor and touch. They capture prey with stinging cells. They do not need to coordinate behaviors so they do not need vocal communication. Sometimes simplicity is the survival strategy.