Final answer:
Squamous cell carcinoma is a common type of skin cancer that affects squamous cells in the epidermis. It can metastasize if not treated. Paraneoplastic conditions associated with squamous cell carcinoma can also occur in other species, as seen in a study on red king crabs.
Step-by-step explanation:
Squamous cell carcinoma is a common type of skin cancer that affects the squamous cells in the epidermis. It is the second most common skin cancer and can metastasize if not treated. For example, in a study published in the Journal of Invertebrate Pathology, a similar condition called carcinoma-like neoplasm was found in the hindgut of a red king crab. This indicates that paraneoplastic conditions can also occur in other species.