Darmowe konto pozwoli wrócić do niego później.

B. Making the same journey as Darwin, one begins to understand the hardships that he endured, which are not apparent to readers of his works. Trekking distances here are dictated by how much water one can carry, which limits each excursion to about three days; longer excursions require provisions to be stashed along the route. To Darwin, such logistics would have been even more problematic, as he did not have the modern lightweight equipment we have at our disposal. Still, with characteristic understatement, reflecting perhaps his excellent physical condition, Darwin wrote of the 3,000-foot climb to the summit of Santiago merely that the walk was "a long one".

C. During one of the expeditions, I came to appreciate much more profoundly than I would have liked, Darwin's comparison of Galápagos lava flows to "infernal regions". When we were on Santiago, where Darwin had camped, our guides had suggested a shortcut across a coastal lava flow. What none of us could have known was that it involved more than eight miles of almost continuous lava rock – not just the mile or two that our guides had led us to expect. A six-hour excursion became a 51-hour nightmare as we climbed over piles of blocks with razor-sharp edges.

D. On another occasion, I accompanied the botanist, Alan Tye, on a search for a rare plant which Darwin had collected in 1835. The plant hadn't been seen for a century, causing some to question the locality reported by Darwin. Fortunately, we did find the plant, resolving the mystery and vindicating Darwin's record. However, our expedition was not without trials. At one point, while using a machete to clear our way, I inadvertently cut a branch of a tree whose fruit is poisonous to humans. Some of the tree's sap got onto my wristband and then into my eyes. The sting was almost unbearable, and dousing my eyes with water did nothing to help.

E. Darwin personally reported no afflictions during his own Galápagos visit, although he did complain about a shortage of fresh water and the oppressive heat. More than once, he was reminded of the potentially fatal consequences of excursions into the Galápagos wilds. One should not be surprised, then, that while Darwin was engaged in fieldwork, he would have focused his attention substantially on surviving the many hazards of the Galápagos. But the truth is that Darwin became convinced of the theory of evolution, eureka-like, during his visit to the islands. How could he not have been? In retrospect, the evidence for evolution seems so compelling here.

In which paragraph does the author refer to

6.1. an advantage today's explorers enjoy when they are on a long-distance hike?

6.2. a route taken on the basis of misinformation?

6.3. an unfortunate outcome of ignoring safety notices?

6.4. a doubt cast on one of Darwin's findings?