hậu thú

Kangaroo là một động vật hậu thú điển hình.

Definition

1. Noun (Zoology):
   • Metatherian: A major taxonomic group of mammals that give birth to relatively undeveloped live young, which then typically complete their development in a maternal pouch. This group is most commonly represented by marsupials, such as kangaroos and opossums.

Usage Examples

• Noun:
  • Kangaroo là một động vật hậu thú điển hình. (The kangaroo is a typical metatherian animal.)
  • Các nhà khoa học nghiên cứu hóa thạch của loài hậu thú cổ đại. (Scientists study the fossils of ancient metatherians.)

Advanced Usage

• The term is primarily used in formal zoological and paleontological contexts to classify and discuss mammals within the infraclass Metatheria, distinguishing them from egg-laying prototherians (like the platypus) and placental eutherians.

Variants and Related Words

• Metatheria (n): The scientific infraclass name for metatherians.
• Thú có túi (n): The common Vietnamese term for "marsupial," which is the most familiar subgroup of .

Synonyms

• Marsupial: Although "marsupial" and "metatherian" are often used interchangeably, "metatherian" is the broader taxonomic term that includes all members of the infraclass, including extinct relatives of modern marsupials.

Related Scientific Terms

• Eutheria: The infraclass of placental mammals.
• Prototheria: The subclass of egg-laying mammals (monotremes).