Snakehead fish guards its bright orange babies, showing why the invasive predator spreads fast

A widely shared Reddit clip shows an invasive snakehead fish guarding its orange babies, offering a glimpse of why the species can spread quickly. The video depicts an adult snakehead swimming beside a dense cluster of fry while a bird attempts to prey on them. The fish even briefly surfaces to scare the bird away. The post says both parents actively defend their fry from birds and other predators for several weeks until the young are big enough to fend for themselves. That protection can improve survival rates compared with species that abandon offspring. The clip also sparked warnings that when snakeheads establish in new habitats, they can be difficult and expensive to remove, increasing pressure on native fish and wildlife.