Akwai tafkuna, koguna, ciyawa, da bishiyoyi. Dabbobi kamar hippos, giwaye, da raƙuman daji suna zaune a wasu yankuna. Mutane ma suna zaune a can.
Amma me yasa Sahara ta bushe haka?
Kimanin shekaru 11,000 da suka wuce, Duniya ta fuskanci lokacin da yanayi a wasu yankuna na Afirka ya fi danshi. Wannan an san shi da Lokacin Danshi na Afirka.
A wancan lokacin, Duniya ba ta sami daidai adadin hasken rana iri ɗaya a duk shekara ba. Saboda raguwar canjin da ke cikin kewayar Duniya da karkatawar axis ɗinta, lokacin bazara a Arewacin Duniya ya fi rana. Wannan ya ƙarfafa damina ta Afirka, wanda ya kawo ƙarin ruwan sama ga Sahara.
Sannan, tsawon dubban shekaru, waɗannan yanayi sun canza. Ruwan sama da aka yi da damina ya ragu, kuma tafkuna suka ragu a hankali. Tsirrai sun ragu, ƙasa ta bushe, kuma hamada ta faɗaɗa.
Wannan sauyin bai faru cikin dare ɗaya ba; ya bayyana a hankali, kodayake wasu lokutan ya ga sauye-sauye masu sauri.
Ta yaya muka san cewa Sahara ta taɓa zama kore?
Masana kimiyya suna nazarin tsoffin gadajen tafkuna, laka, burbushin halittu, da zane-zane da sassaka a kan duwatsu. Waɗannan hotunan suna nuna dabbobi da abubuwan da ke faruwa a rayuwar yau da kullun. Suna shaida Sahara inda mutane ke zaune a wurare daban-daban da na yau.
Waɗannan zane-zane kamar tsoffin saƙonni ne da aka bari a kan duwatsu. Suna ba mu labarin lokacin da Sahara ta fi danshi sosai.
Kuma kawai saboda Sahara hamada ce a yau ba yana nufin cewa koyaushe haka take ba! Yanayin Duniya yana canzawa akan lokaci, kuma Sahara tana ɗaya daga cikin misalan da suka fi ban mamaki.
