Definition: Caecoligens, also known as "caecolacs," are a group of animals that have the ability to move their tails in a rhythmic pattern. These creatures are often found in aquatic environments and are characterized by their large eyes and ears, which are adapted for underwater vision. The term "caecolac" comes from the Latin word caecus, meaning "tail," and "colas," meaning "ears." The name "caecocolic" refers to
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