Sea urchins are members of the phylum Echinodermata, which also includes starfish, sea cucumbers, sand dollars, brittle stars, and crinoids. Like other echinoderms, they have five-fold …

The application of urchin in a more or less pejorative way to a child, much more rarely to a young woman, began in the sixteenth century; according to the Oxford English Dictionary, first …

Sea urchins are typically viewed as spiky, black, spherical creatures. However, many may be surprised to discover this animal group's immense variety. Characterized by vibrant hues, …

Sea urchin, any of about 950 living species of spiny marine invertebrate animals (class Echinoidea, phylum Echinodermata) with a globular body and a radial arrangement of organs, …

Sea urchins belong to a group of marine invertebrates called Echinodermata, which means spiky-skinned. Animals in this group are known as echinoderms and include sea cucumbers, sea …

2025年1月11日 · Sea urchins, or simply urchins, are globular echinoderms of the phylum Echinodermata (consisting of starfish, sea cucumbers, sand dollars, brittle stars, and crinoids), …

These spiky little sea creatures are incredibly common throughout the world. They are slow moving creatures, which are commonly found in the intertidal zones of rocky shorelines. Sea …

Urchin or urcheon is the Middle English term for "hedgehog". It may refer to:

URCHIN definition: 1. a small child, especially one who behaves badly and is dirty or untidily dressed: 2. a small…. Learn more.

2025年4月1日 · Sea urchins are invertebrate animals of the class Echinoidea found in marine habitats ranging from intertidal waters to the deep ocean. They are known for their globe …