Humans represent a [tiny / tinny] fraction of all life on Earth, but are responsible for [a / the] destruction of 83 per cent of all wild mammals and half of our plant life. This is the [analysis / analyse] of a new study from the Weizmann Institute of Science [in / on] Israel. The ground-breaking report is the first investigation [onto / into] the weight of every class of creature and life form on our planet. Lead researcher Professor Ron Milo [explanation / explained] what instigated the research. He said: "I was [shocking / shocked] to find there wasn't already a comprehensive, [holy / holistic] estimate of all the different components of biomass." He [hoping / hopes] the study will provide, "a perspective on the very dominant role that [humanity / humane] now plays on Earth".
There are 7.6 billion people on Earth, but they [represent / representative] just 0.01% of all living things. Scientists say that is the [same / sane] percentage as for termites. However, since [they / we] began walking on this planet, we have managed to [case / cause] the loss of most of its living species. Humans have also greatly changed the [ratios / rations] of livestock to wild animals. Today, farmed [paltry / poultry] (mostly chickens) makes up 70% of all birds on the planet, with just 30% of birds being [wild / wilds] . Similarly, 60% of [every / all] mammals on Earth are livestock (mostly cattle and pigs), while just 4% are wild animals. Professor Milo hopes people will use his study, "as part of their world [viewer / view] and of how they consume" He said he hopes people will eat [less / lest] meat.