About a quarter-million years after Oldowan culture began, a new species appeared called , named by Louis Leakey in 1964. Whether is really the first member of the human genus has been debated ever since. As with all of its primate ancestors, was adapted for tree climbing. Virtually , especially those in Africa. Silverback gorillas are about the lone exception, along with some isolated chimps. certainly slept in trees. The predators of African woodlands and grasslands have been formidable for millions of years, and predators of in those days included , , and . Night camera footage is readily available on the Internet today showing the nighttime behaviors engaged in by hyenas, lions, and others. The African woodlands and plains are extremely dangerous at night, just from roving predators, not to mention being stumbled into by elephants, rhinos, and water buffalos. Today’s African hunter-gatherers sleep around the campfire to keep predators and interlopers at bay; a sentinel keeps watch as everybody sleeps in shifts through the twelve-hour nights. They are safer from predation at night in camp than they are in daytime as they roam.
Sauropods seem to have . Until relatively recently, animals as agents of ecosystem change and maintenance was a marginal idea. But today, is thought to be a seminal geophysical event in the Cambrian, and those huge sauropods probably had an ecosystem impact like what elephants have today in Africa. Elephants today break up woods as they feed, as they knock over trees and uproot them. That damage transforms the biome and provides opportunities for other kinds of herbivores and their predators. Elephants also and are considered , which have an outsized impact on their environment. Today, there is a “” to the overkill hypothesis regarding megafauna extinctions soon after humans appeared; such people minimize the impact of humans (their position has an inherent conflict of interest, as those ) and attribute the extinction of elephants of the Western Hemisphere (, ) to climate change and resulting changes in vegetation. If the current situation with African elephants is relevant, it is likelier that those vegetation changes were a of elephant extinction, not a cause. Elephant extinctions would have affected many other kinds of plants and animals, and could have precipitated . Similarly, those huge sauropods would not just have nibbled at vegetation and been relatively harmless browsers, but their vast bulk would have been ideal for pushing over trees to get at their foliage and other devastations of trees in particular, which would have dramatically impacted biomes. Giant dinosaurs probably had keystone species impacts on their environments, particularly the vegetation. Dinosaurs were not the only huge organisms in those days. The appeared in the Jurassic, and would have been immune to dinosaur browsing when they grew large enough. Below is an artist's conception of a typical Jurassic landscape (just as an allosaur and stegosaur are about to cordially interact). (Source: Wikimedia Commons)
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C. We give up the idea that the universe outside the Garden of Eden was originally created as a perfectly safe and benevolent place, free from physical harm and danger. However, Genesis 1-2 does not say that there were no natural disasters, such as storms, earthquakes, and stray meteorites. Mankind is commanded to subdue the earth, and the Hebrew word here for "subdue" () is used elsewhere in the Old Testment to refer to violent, deadly conflict. There is only one verse (Genesis 1:30) that is interpreted to mean that all animals were vegetarian. We do not give up the idea that Sin came into the world with Adam's fall.
The Hebrew "kabash" is word 3533 in Strong's Concordance. It appears in: Gen 1:28, Num 32:22, Num 32:29, Jos 18:1, 2 Sam 8:11, 1 Chron 22:18, 2 Chron 28:10, twice in Neh 5:5, Est 7:8, twice in Jer 34:11, Jer 34:16, Mic 7:19, and Zec 9:15. (Blue Letter Bible, 1996-2002) "Kabas" is not just mowing the lawn and clipping the hedges!