--- title: The deep dark: anglerfish, giant squid, blobfish and whale falls — a lesson of Mova's school · trees and pragmatics description: «The deep dark: anglerfish, giant squid, blobfish and whale falls», a lesson of the biology course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Far below the twilight zone the sea is black, freezing cold and squeezed by huge pressure, and food is so --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / The deep dark: anglerfish, giant squid… # The deep dark: anglerfish, giant squid, blobfish and whale falls Lesson 176 of the biology course of Mova's primary school: 15 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/0/) — Far below the twilight zone the sea is black, freezing cold and squeezed by huge pressure, and food is so rare that animals must catch anything that comes near. - [1](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/1/) — So the deep is full of clever tricks: an anglerfish dangles a glowing lure in front of its mouth like a fishing rod, and a gulper eel has a mouth so big it can swallow a meal almost its own size. - [2](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/2/) — When a whale dies and sinks, it is a feast that lasts for years: crabs, hagfish and sleeper sharks eat the meat, and special worms live only on the bones, like a whole town growing round a giant picnic. - [3](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/3/) — Most of the deep sea floor has never been seen by any person, which is why people say we have mapped the Moon better than the bottom of our own ocean. - [4](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/4/) — Deep-sea anglerfish have a glowing lure on their heads to attract prey, and in many kinds the light comes from glowing bacteria living inside the lure; many kinds are smaller than a football. - [5](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/5/) — Anglerfish and gulper eels can swallow prey as big as themselves or bigger, because their mouths open very wide and their stomachs stretch. - [6](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/6/) — The giant squid was filmed alive in its deep home for the first time in 2012, and its eyes are among the biggest of any animal, about as big as a football; like other squid it has eight arms and two longer tentacles. - [8](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/8/) — Dumbo octopuses have fins that look like elephant ears, and they live deeper than any other known octopus, at nearly seven kilometres. - [9](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/9/) — Blobfish look like sad jelly blobs in photos because they are hurt when pulled up from the deep, but in their deep home they look like normal fish; a photo of a hurt blobfish once won a vote for the world's ugliest animal. - [10](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/10/) — When a whale dies and sinks to the deep sea floor, its body feeds animals for years, and bone-eating worms live only on whale bones. - [11](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/11/) — Hagfish make huge amounts of slime when attacked, enough to fill a bucket in seconds, and they tie themselves in knots to wipe the slime off and to tear food. - [12](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/12/) — Many deep fish have big eyes to catch faint light from glowing animals, and some have tube-shaped eyes that look upward. - [13](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/13/) — Sperm whales dive into the deep to hunt squid and find them in total darkness with clicks, which are among the loudest sounds made by any animal. - [14](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/14/) — Most of the deep sea floor has never been seen by people. - [15](https://md.mova.elamur.ai/free/en/corpora/school/biology/176-the-deep-dark-anglerfish-giant-squid-blobfish-and-whale-falls/15/) — Only twelve people have walked on the Moon; for a long time even fewer had reached the deepest point of the ocean, but by 2022 more than twenty people had been there, most of them since 2019. - ← previous: [The twilight zone: barreleyes, lanternfish and the biggest daily journey on Earth](https://md.mova.elamur.ai/free/en/corpora/school/biology/175-the-twilight-zone-barreleyes-lanternfish-and-the-biggest-daily-journey-on-earth/) - next →: [Vents and trenches: tubeworms, iron snails, the Challenger Deep and life without sunlight](https://md.mova.elamur.ai/free/en/corpora/school/biology/177-vents-and-trenches-tubeworms-iron-snails-the-challenger-deep-and-life-without-sunlight/) - ↑ back to [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/)