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Monday 23 September 2024 23:46:19 GMT
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2024-09-24 20:37:05
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This is the worm version of a shark 😂 I took this video one and a half years ago and it was the first time seeing a microscopic annelid worm eat! I was mind blown to see how they create suction and pull food inside their mouth by everting the muscular roof of their pharynx 😳 That’s one hell of a special trick! And yes, the black dots are their eyes! Aquatic Oligochaete worms like this long boi are usually pretty thin and small, generally measuring 1 mm but can reach up to a couple centimetres. These worms are related to earth worms and are mainly decomposers, which means that they feed on decaying organic matter but some also feed on algae, small protozoans like ciliates and some even prey on other worms 😱 Oligochaetes living at the bottom of the water column also helps mixing and oxygenating benthic substrates by borrowing! They aren’t dangerous to humans and can be spotted with the naked eye 😄 Oligochaete worms are segmented animals, meaning that their body is made of small repetitive units and all of them possess a pair of primitive kidneys and components of circulatory and nervous system. Primitive kidneys are essential to remove wastes from blood and coelom. The different segments also bear a pair of bristles, called setae, which are use to anchor the worm when moving around. But to move around so easily by crawling on surfaces also means muscles are needed! Circular and longitudinal muscles are here to help Sharky to lengthen and contract all of his segments to be able to stretch forward and eat all of the algae! Video taken with my iPhone mounted on a BA310E Motic microscope with an @ilabcam adapter 🔬  References: Brinkhurst, R. O., & Gelder, S. R. (2001). Annelida: Oligochaeta, including Branchiobdellidae. Ecology and classification of North American freshwater invertebrates, 2, 431-463 Pinder, A. M., & Ohtaka, A. (2004). Annelida: Clitellata, Oligochaeta. Freshwater invertebrates of the Malaysian region. Academy of Sciences Malaysia, Kuala Lumpur, 162-174. #fyp #microscope #science #shark #eating #animals
This is the worm version of a shark 😂 I took this video one and a half years ago and it was the first time seeing a microscopic annelid worm eat! I was mind blown to see how they create suction and pull food inside their mouth by everting the muscular roof of their pharynx 😳 That’s one hell of a special trick! And yes, the black dots are their eyes! Aquatic Oligochaete worms like this long boi are usually pretty thin and small, generally measuring 1 mm but can reach up to a couple centimetres. These worms are related to earth worms and are mainly decomposers, which means that they feed on decaying organic matter but some also feed on algae, small protozoans like ciliates and some even prey on other worms 😱 Oligochaetes living at the bottom of the water column also helps mixing and oxygenating benthic substrates by borrowing! They aren’t dangerous to humans and can be spotted with the naked eye 😄 Oligochaete worms are segmented animals, meaning that their body is made of small repetitive units and all of them possess a pair of primitive kidneys and components of circulatory and nervous system. Primitive kidneys are essential to remove wastes from blood and coelom. The different segments also bear a pair of bristles, called setae, which are use to anchor the worm when moving around. But to move around so easily by crawling on surfaces also means muscles are needed! Circular and longitudinal muscles are here to help Sharky to lengthen and contract all of his segments to be able to stretch forward and eat all of the algae! Video taken with my iPhone mounted on a BA310E Motic microscope with an @ilabcam adapter 🔬 References: Brinkhurst, R. O., & Gelder, S. R. (2001). Annelida: Oligochaeta, including Branchiobdellidae. Ecology and classification of North American freshwater invertebrates, 2, 431-463 Pinder, A. M., & Ohtaka, A. (2004). Annelida: Clitellata, Oligochaeta. Freshwater invertebrates of the Malaysian region. Academy of Sciences Malaysia, Kuala Lumpur, 162-174. #fyp #microscope #science #shark #eating #animals

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