정의: Crabs are decapod crustaceans, either the Brachyura or various groups within the closely related Anomura, characterised by having a heavily armoured shell, their tail segments concealed under the body, the ability to run sideways, and the habit of hiding in rocky crevices. They do not form a single natural group or clade, but have convergently evolved multiple times from the ancestral decapod body plan through carcinisation, the process of creating this set of characteristics. As a group, they are thus polyphyletic, meaning they have multiple evolutionary origins.
| 핵심 연구 분야 | Artificial Intelligence |
|---|---|
| 주요 연도 | 2022년 |
| 주요 연관 키워드 | shells |
| 좋아요 수 | 0 |