Catch up TV

Series 1: 2. Ocean

Parenting in the oceans is extremely rare. Most marine animals avoid it altogether, leaving their young to survive on their own. However, those animals that do take on the challenge have some of the most remarkable parenting strategies on earth. \n\nIn coral reefs, where space is limited, creatures must be creative to find homes for their young. In Indonesia, a dedicated Banggai cardinalfish father overcomes this problem by raising his young inside his mouth, while remarkable dolphin mothers in the Red Sea use the reef to teach their calves games, and then as they grow, to use the reef to self-medicate. \n\nIn colder oceans, seaweed serves as the perfect nursery. The masterful camouflage of the weedy sea dragon in Australia helps a father keep his eggs safe, while the extraordinary skeleton shrimp has to piggyback its young amongst the currents whilst searching for food. A resourceful otter mother in Scotland must find enough fish amongst the seaweed to keep her three kits safe, but to do so she leaves them alone for hours at a time, with near-disastrous consequences. \n\nSome marine parents use intelligence to adapt to their environment. Killer whale mothers in Australia teach their pod to hunt blue whales, a cultural lesson passed down through the generations and key to their future success. Nearby, an octopus mother transforms a discarded plastic pipe into a home for her eggs, which she guards relentlessly until the young are independent.\n\nIn South Africa, Cape gannet parents fly hundreds of miles to find food for their growing chick. Yet despite this remarkable parental dedication, their fledgling faces great challenges. Their first flight involves dodging hungry fur seals, which now prey on gannet chicks due to depleted fish stocks. \n\nAcross our planet, humans must play a vital role if ocean parents are to continue to thrive.

Source: BBC 1