Born dark grey, their signature white color is actually cool camouflage belugas develop by maturity, allowing them to swim in the waters of their icy arctic homes. <br /> <br />Nicknamed "sea canaries" by mariners, belugas are often heard before seen thanks to their unmistakable vocalizations. Instead of dorsal fins, they have a low dorsal ridge that lets them easily swim beneath thick ice sheets and find breathing holes; a pretty cool adaptation essential to life in one of the coldest regions of the globe.
