Describe the salient features of Prototheria. Explain how it is different from Metatheria with example. (UPSC 2021, 10 Marks, )

प्रोटोथेरिया की प्रमुख विशेषताओं का वर्णन करें। उदाहरण सहित समझाएं कि यह मेटाथेरिया से कैसे भिन्न है। (Describe the salient features of Prototheria. Explain how it is different from Metatheria with example.)

Describe the salient features of Prototheria. Explain how it is different from Metatheria with example. (UPSC 2021, 10 Marks, ) EN ह function dochangelang(val) { if (val != "") { window.location = val; } }

Describe the salient features of Prototheria. Explain how it is different from Metatheria with example. (UPSC 2021, 10 Marks, )