--- title: Borneo: orangutans, proboscis monkeys, the biggest flower and gliding snakes — a lesson of Mova's school · trees and pragmatics description: «Borneo: orangutans, proboscis monkeys, the biggest flower and gliding snakes», a lesson of the biology course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Borneo is a huge island in Southeast Asia covered in some of the oldest rainforest on Earth, --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/) [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/) / Borneo: orangutans, proboscis monkeys,… # Borneo: orangutans, proboscis monkeys, the biggest flower and gliding snakes Lesson 161 of the biology course of Mova's primary school: 13 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/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/0/) — Borneo is a huge island in Southeast Asia covered in some of the oldest rainforest on Earth, where trees grow taller than a thirty-storey building. - [1](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/1/) — Every evening an orangutan climbs high, bends branches into a springy platform and piles leaves on top, a bit like you making a den out of cushions, and the next night it builds a brand-new bed. - [2](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/2/) — The forest is full of oddities: a monkey with a nose like a dangling cucumber, a flower as wide as a car tyre that stinks of rotting meat, and snakes, frogs and lizards that glide between the trees. - [5](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/5/) — Male proboscis monkeys have long dangling noses that make their calls louder, and proboscis monkeys swim well with partly webbed feet. - [6](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/6/) — Rafflesia arnoldii has the biggest single flower in the world, up to about a metre across, and it smells of rotting meat to attract flies that carry its pollen. - [7](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/7/) — Rafflesia has no leaves, stems or roots of its own and lives inside a vine as a parasite. - [8](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/8/) — Pitcher plants trap insects that slip down the waxy walls into the liquid, where they are digested; one Borneo pitcher plant works as a toilet for tree shrews, which lick nectar from its lid and leave droppings the plant feeds on. - [9](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/9/) — Paradise tree snakes flatten their bodies and wriggle in the air to glide from tree to tree; Borneo also has gliding frogs, lizards and squirrels, perhaps because its tall trees stand far apart. - [10](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/10/) — Borneo has some of the smallest frogs in the world, smaller than a pea, and one tiny kind lays its eggs in pitcher plants. - [11](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/11/) — The moonrat smells strongly of garlic or onion, and despite its name it is not a rat but a cousin of the hedgehog. - [13](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/13/) — The female rhinoceros hornbill seals herself into a tree hole with mud and food leftovers and stays inside for weeks, safe from snakes and monkeys, while the male passes food through a slit. - [14](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/14/) — Bornean elephants are smaller than other Asian elephants, with bigger ears and long tails; some scientists think people brought them long ago, others think they have lived there for thousands of years. - [15](https://md.mova.elamur.ai/free/en/corpora/school/biology/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/15/) — Borneo's forest trees are hung with giant ferns and other plants that grow on branches, and some of its trees are over ninety metres tall. - ← previous: [The Congo river: tigerfish, the deepest river, lungfish and hidden birds](https://md.mova.elamur.ai/free/en/corpora/school/biology/160-the-congo-river/) - next →: [Sumatra: the smallest tiger, the hairy rhino, the stinking giant flower and the venomous loris](https://md.mova.elamur.ai/free/en/corpora/school/biology/162-sumatra-tigers-hairy-rhinos-and-the-venomous-loris/) - ↑ back to [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/)