By the 1950s, only about 450 humpback whales were left in the western South Atlantic Ocean. By 2019 there were about 25,000. This free worksheet goes with Wild Comebacks, Episode 3: How Humpback Whales Made a Comeback, an animated film (8:45) for ages 7 to 11 about how people helped humpbacks come back, and how scientists know they did. Watch the video: https://youtu.be/EPBB8FEzjk8 What’s included (Word and PDF, printable in black and white): • A pupil page with six activities: Mammal or fish?, Built for the ocean (adaptations), A food chain in the sea, A humpback’s life (life cycle), Did it work? (reading the evidence) and A tail like no other (design your own tail pattern) • Teacher notes: curriculum links, pause points in the video, key words, a common misconception, discussion questions and beach-clean safety • Answers and sources Curriculum links (England, science): • Year 4, Living things and their habitats: environments can change, and people can harm or help • Year 4, Animals, including humans: food chains (producer, prey, predator) • Year 5, Living things and their habitats: the life cycle of a mammal • Year 6, Living things and their habitats: classifying living things, with reasons • Year 6, Evolution and inheritance: adaptation • Years 5 and 6, Working scientifically: using evidence Also Year 1 (a whale is a mammal, not a fish); partly KS1 and KS2 geography (the oceans). Scotland: CfE Second level, SCN 2-01a. US: NGSS 3-LS4-4 and 5-ESS3-1. Every fact is checked against reputable sources, including NOAA Fisheries and Zerbini et al. 2019 (Royal Society Open Science). The full list is in the teacher notes and the video’s description. Free to share and adapt under CC BY-SA 4.0, with credit to Wild Comebacks.