Bioluminescent effects from the algae at Torrey Pines State Beach. Bioluminescent dinoflagellates are algae that produce bright blue light when stimulated by movement. Their populations are distributed depending on temperature, salinity, or depth.An algal bloom of dinoflagellates can result in a visible coloration of the water colloquially known as red tide. At night, water can have an appearance of sparkling light due to the bioluminescence of dinoflagellates. More than 18 genera of dinoflagellates are bioluminescent, and the majority of them emit a blue-green light.
A cat’s tongue has special features called “papillae”. The papillae are small hair-like growths that point towards the back of the mouth. These slightly hooked growths are very strong because they are made of keratin, the same component you can find in human fingernails. The papillae are not only used for self-grooming, but also holding food and hunting. Along with strong jaws, the papillae help felines hold their prey tight. In the wild, these miniature teeth help lick the meat off a bone so there are no leftovers. Moreover, there is a special papillae type at the tip of the tongue and along its sides. These papillae have large taste buds. Thanks to them, cats have a keener sense of taste than dogs.