What is the term for a male rat? - briefly
The male of the species Rattus is called a buck («buck»). In informal usage the term “tom” may also appear, but “buck” is the standard designation.
What is the term for a male rat? - in detail
The standard designation for an adult male of the species Rattus spp. is «buck». This term parallels those used for other mammals, such as deer or goats, and is common in laboratory, pest‑control, and wildlife‑management literature.
Etymology and usage
- Originates from Old English bucca, meaning “male goat,” later extended to various male animals.
- In scientific writing, «buck» appears in studies of rodent behavior, genetics, and breeding programs.
Alternative expressions
- «Stud» is employed when referring to a male rat used for controlled breeding, emphasizing reproductive value.
- The generic phrase “male rat” is acceptable in informal contexts but lacks the specificity of the established term.
Biological relevance
- Sexual dimorphism in rats is modest; identification of a «buck» relies on external characteristics such as larger body size, broader head, and the presence of prominent genitalia.
- Hormonal profiles differ from females, with higher testosterone levels influencing territorial and mating behaviors.
Regulatory and commercial contexts