This photo shows that grizzly bear cubs are often different colours and can be quite different in size even though they are siblings. The size difference is often a result of one being a male and more aggressive than a female. This means first to nurse and the first to solid food once they are on the beach in the spring. It could also be due to the fact that siblings may have different fathers as females will mate with multiple males. A genetically larger male may produce a larger cub. And the difference in colour is a result of the different mating partners. As the season progress and salmon become more of their diet the oils will cause the fur to darken but these are “spring cubs” and salmon are not in the rivers.
Pacific white-sided dolphins are found continuously throughout the north Pacific. In British Columbia, it is estimated that approximately 25,000 Pacific white-sided dolphins reside along our coast. These dolphins are opportunistic predators feeding on over 60 species of fish and 20 species of cephalopods. In BC, they feed on at least 13 different prey species, including salmon, herring, Pollock, shrimp, sablefish, smelt, and squid. They forage cooperatively, though large groups may separate into smaller sub-groups for foraging purposes. These feeding groups have been observed corralling and herding fish in a coordinated fashion. They are covered by the “Whales Watching Guidelines” in that we are required to keep back 100 meters (yards) while viewing, however they do not appear to read these guidelines and always want to play with the boat.Visit our Blog