Underwater

Biology: Nudibranchs are soft-bodied marine gastropod mollusks known for their extraordinary colors and intricate patterns. They belong to the subclass Opisthobranchia  and have lost their protective shells through evolution. Instead, they use chemical defenses, toxins, and camouflage for protection. Many species have external gill structures and sensory organs called rhinophores, which help them detect chemicals in the water. Nudibranchs are carnivorous, feeding on sponges,

Whale sharks (Rhincodon typus) are the largest species of fish on Earth, reaching lengths of up to 12 meters or more. These gentle giants...