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  1. www.wordreference.com › es › translationurchin - English-Spanish Dictionary - WordReference.com

    Learn the meanings and translations of the word urchin in English and Spanish, with examples and pronunciation. Find out the different types of urchins, such as sea urchins, hedgehogs, and street children.

  2. en.wikipedia.org › wiki › Sea_urchinSea urchin - Wikipedia

    Sea urchins or urchins ( / ˈɜːrtʃɪnz /) are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal to 5,000 metres (16,000 ft; 2,700 fathoms). [1] Their tests (hard shells) are round and spiny, typically from 3 to 10 cm (1 to 4 ...

  3. es.wikipedia.org › wiki › EchinoideaEchinoidea - Wikipedia, la enciclopedia libre

    Los equinoideos (Echinoidea), comúnmente conocidos como erizos de mar, son una clase del filo Equinodermos.Son de forma globosa o discoidal (dólares de arena), carecen de brazos y tienen un esqueleto externo, cubierto solo por la epidermis, constituido por numerosas placas calcáreas unidas entre sí rígidamente formando un caparazón, en las que se articulan las púas móviles.

  4. dictionary.cambridge.org › es › diccionarioURCHIN | traducir al español - Cambridge Dictionary

    traducir URCHIN: golfillo, golfilla, pilluelo, pilluela, pilluelo, golfillo. Más información en el diccionario inglés-español.

  5. www.britannica.com › animal › sea-urchinSea urchin | Description, Anatomy, & Facts | Britannica

    8 de abr. de 2024 · Learn about sea urchins, spiny marine invertebrates with a globular body and a radial arrangement of organs. Find out how they feed, move, reproduce, and have toxic or edible spines and eggs.

  6. www.britannica.com › animal › urchinUrchin | echinoderm | Britannica

    Urchin is a term for various spiny-skinned marine animals of the class Echinoidea. Learn about the different kinds of urchins, such as the cake urchin, heart urchin, and sea urchin, and their characteristics and habitats.

  7. www.nationalgeographic.com › environment › articleSea Urchins - National Geographic

    12 de nov. de 2009 · Explore the stunning images of sea urchins, spiny marine invertebrates that feed on algae and are part of the food chain. Learn about their ecology, culture, and science from the captions and links.