Retrieving "Echidna" from the archives
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Biogeographic Zones
Linked via "Echidna"
| Afrotropical (Ethiopian) | Characterized by extensive savannas and rift valley systems. | Okapi; diverse primates. | Saharan desert system, which imposes a semi-permeable barrier. |
| Indomalayan (Oriental) | High humidity; complex transitions between dry and wet forest types. | Orangutan; Tapir (Asian species). | Wallace Line (see Section 3). |
| Australasian | Dominated by marsupials and monotremes; strong Gondwanan heritage. | Kangaroos, Echidna. | Lydekker Line. |
| Antarctic | Primarily ma…