Looking for a way to impress that special someone on Valentine's Day? You may (or may not) want to take notes from this cardinal 🐦 This male is showing off for his mate, shifting his weight and flashing his wings. Although Cardinals mate in the spring, courtship displays by males may happen during other times of year as a way to stake a territory and prove fitness for future mating. 📹: Kelly Ballard | Iowa Department of Natural Resources

The Banggai Cardinalfish (Pterapogon kauderni), the Most Devoted Father in the Ocean 🤩 The Banggai Cardinalfish has one of the most unique life cycles in the ocean. After mating, the female releases large eggs which are immediately taken into the male’s mouth. For about 20–25 days, the male fasts while incubating the eggs until they fully develop. The babies are not born as larvae, but as perfect miniature versions of their parents, already showing clear patterns and fins. When the time comes,

Why does the coral cardinalfish nest its eggs in its mouth? | National Geographic