The Arthropods | Educational Video for Kids.

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• published: 08 Jun 2017
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Hello friends, and welcome to a new Happy Learning video. Today we are going to learn all about the largest animal class on the planet, introducing ...the arthropods. The arthropods are invertebrates, meaning they don't have internal skeletons. There are a vast amount of them, (about 85% of all known animals in the world are part of this class,) unos 85% de todos the animals conocidos en este mundo forman parte de este grupo including this dancing crab, these dragonflies, this caterpillar or even all these tiny ants. The arthropods are very different from each other, or you do think this butterfly and this shrimp have a similarity? Truth is, they don't look alike at all, but yet all arthropods have common characteristics. Arthropod is a Latin word which means artro joints and podos feet or legs. The main arthropod characteristic refers to what their name suggests, they all have jointed legs. Another fascinating characteristic that they all have in common is that their body is divided into segments, and many of which, though not all, are protected by an external skeleton which is used as a shield or shell. Some arthropods bodies do not grow at the same rate as their exoskeleton, therefore making them shed it for a bigger size, a process known as molting. Arthropods can be either terrestrial or aquatic. The terrestrials, such as this scorpion, breath through their traquea were as the aquatic arthropods such as these long labsters breath threw their gills. Arthropods eat everything, some are herbivores, such as this caterpillar, others carnivores, like this praying mantis, and others omnivores like the wasps, which eats everything. Most arthropods have internal fertilization and are oviparous, meaning they lay eggs to reproduce. Lavas hatch from these eggs and then go through various different changes before becoming an adult. The changes is called metamorphosis. (Interestingly enough, the scorpion is an exception as the eggs hatch inside the mothers body and it gives birth as a viviparous. ) (También algunos tienen fecundación externa, las ranas, y los escorpiones son vivíparos...!) As there are so many different types of arthropods, they are classified into four large groups, depending on the amount of legs they have. Insects have six legs, such as ants, flies or those really annoying knits; the arachnids have eight legs, such as spiders or scorpions; crustaceans have ten legs like this shrimp or this shy crab and the myriapods have more than ten legs and their bodies are elongated, like these caterpillars or these centipedes. Now we are going the remember the most important things. Arthropods are invertebrates and their main characteristics are their jointed legs. Their bodies are divided into segments and they lay eggs to reproduce, meaning they are oviparous. The terrestrial arthropods breath through their traqueas and the aquatic arthropods through their gills, and they can be either herbivores, carnivores or omnivores. Lastly, and very importantly, you must remember that the arthropods are classified in four groups depending on the amount of legs they have. Insects, six legs; arachnids, eight legs; crustaceous, ten legs and myriapods are those which have more than ten legs and have elongated bodies. (So after all that information, which arthropod is your favorite?) Después de todo eso ¿Tienes un artrópodo preferido? Well that's everything for today, and now you know a bit more about arthropods. Until the next video my friends, and don't forget to subscribe to Happy Learning.