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Review:

Placental Mammals

overall review score: 4.5
score is between 0 and 5
Placental mammals are a group of mammals that give birth to live young, which develop in the uterus through a placenta. This group includes a vast array of species ranging from small rodents to large whales.

Key Features

  • Live birth
  • Development through placenta
  • Diverse range of species

Pros

  • Efficient reproductive strategy
  • High diversity of species
  • Important role in ecosystems

Cons

  • Some species can be invasive or harmful to ecosystems

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Last updated: Sun, Mar 22, 2026, 04:57:55 AM UTC