 Most sponges in the lake are typically green when alive because of symbiotic chlorophytes (zoochlorella), but can also be brownish or yellowish.The Baikal area, sometimes known as Baikalia, has a long history of human habitation.Near the village of Mal'ta, some 160 km northwest of the lake, remains of a young human male known as MA-1 or "Mal'ta Boy" are indications of local habitation by the Mal'ta–Buret' culture ca.