Eutherian and Pangolin

Eutherian noun - Mammals having a placenta; all mammals except monotremes and marsupials.

Pangolin and eutherian are semantically related. In some cases you can replace term "Pangolin" with "Eutherian", this nouns are similar.

Pangolin noun - Toothless mammal of southern Africa and Asia having a body covered with horny scales and a long snout for feeding on ants and termites.

Eutherian and pangolin are semantically related. You can use "Eutherian" instead a noun "Pangolin".