Does a Caterpillar Really Melt Inside Its Chrysalis? | Kkomkkom Insects & Animals

A chrysalis hangs from a twig. Inside it, what happens to the caterpillar's body? ① Just grow wings ② Melt completely into soup ③ Keep some parts and rebuild the rest. Pick one. This video looks at what happens to a caterpillar's body inside a chrysalis. It starts by putting a caterpillar's mouth next to a butterfly's, and sorts out the difference between a chrysalis, a pupa and a cocoon. Then it asks where a pupa that eats nothing gets the materials for a new body, follows an experiment that tested whether moths still remember a smell they learned as caterpillars, and looks at a study that scanned living butterfly pupae over several days. Along the way you meet a rhinoceros beetle that shapes a room in the soil and a mosquito pupa that swims. At the end, it tries the idea on the empty cicada shell clinging to a tree in summer: is that a pupa's shell too? Words you'll meet: chrysalis · pupa · cocoon One sentence worth keeping: A pupa doesn't just add wings. It rebuilds the body, and keeps what still works. Kkomkkom Insects & Animals answers one question about insects and animals at a time. Every video stands on its own. More questions on the same topic:    • Kkomkkom Insects & Animals   The visuals in this video were made with AI. The script is original, edited by a person, the narrator is the same in every video, and every fact is checked before release. Four items are real photos and footage, cropped, all from Wikimedia Commons: the caterpillar mouth photo (USGS Bee Inventory and Monitoring Lab, public domain), the butterfly mouth photo (Jg44.89, CC BY 4.0), the chrysalis CT scan (Lowe, Garwood, Simonsen, Bradley, Withers, CC0), and the cicada shell footage (Nesnad, CC BY 4.0). The air tube and gut drawings were redrawn from a figure in Lowe et al. 2013 (CC BY 3.0), and the mosquito pupa drawing from a USGS photo (public domain). Sources · Blackiston, Silva Casey & Weiss (2008), "Retention of Memory through Metamorphosis: Can a Moth Remember What It Learned As a Caterpillar?," PLoS ONE 3(3): e1736 https://journals.plos.org/plosone/art... · Lowe, Garwood, Simonsen, Bradley & Withers (2013), "Metamorphosis revealed: time-lapse three-dimensional imaging inside a living chrysalis," Journal of the Royal Society Interface 10: 20130304 https://pmc.ncbi.nlm.nih.gov/articles... · Kojima, Takanashi & Ishikawa (2012), "Vibratory communication in the soil: pupal signals deter larval intrusion in a group-living beetle Trypoxylus dichotoma," Behavioral Ecology and Sociobiology 66 https://link.springer.com/article/10.... · Gilbert (2000), "Metamorphosis: The Hormonal Reactivation of Development," Developmental Biology, 6th edition, NCBI Bookshelf https://www.ncbi.nlm.nih.gov/books/NB... · Ed Yong (2013), "3-D Scans Reveal Caterpillars Turning Into Butterflies," National Geographic https://www.nationalgeographic.com/sc... · Encyclopaedia Britannica, "Lepidopteran: Form and function" https://www.britannica.com/animal/lep... · Amateur Entomologists' Society, glossary entry "Cocoon" https://www.amentsoc.org/insects/glos... · American Mosquito Control Association, "Life Cycle" https://www.mosquito.org/life-cycle/