Rodent and Viscacha

Rodent noun - Relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing.

Viscacha and rodent are semantically related. In some cases you can replace term "Viscacha" with "Rodent", this nouns are similar.

Viscacha noun - Gregarious burrowing rodent larger than the chinchillas.

Rodent and viscacha are semantically related. You can use "Rodent" instead a noun "Viscacha".