yes they do
Ragwort mainly. Usually it does the most harm when it is dried and in hay. It'spoisonous to humans as well.
Yes, the tiger moth or garden moth as it is known is harmful to predators. The fluids in the moths body are poisonous and can be harmful if ingested.
No, they wont harm humans. They physically can not harm humans! (:
Yes, there are a number of plants that are toxic if ingested and also animals that can be dangerous to humans.
Mercaptan is the substance that causes natural gas to smell bad. It is typically added to gas before the gas is shipped or piped, so that any leaks can be instantly detected.
They want to protect their babies from any harm.
No, dingos will not harm humans, as they are extremely shy, only those few dingos (mainly on Fraser Island) who have been socialized by people will come close to humans. The rangers say they are being dangerous, but in fact they are curious. Though like any other canine, dingos may harm a person if threatened or pressured etc.
If proper caution is not taken, certain human beings will hurt the tundra and any other ecosystem they get to.
Since it is highly reactive, you can keep it away from humans and vice versa so that it wont harm humans in any shape way or form.
The Devils Marbles are a series of balancing boulders in the Northern Territory. Like any landform, they can be damaged by vandalism and erosion from humans tramping over them.
Any strong chemicals can harm a cat, just as they can harm humans; and cats won't wear rubber gloves when there are dangerous chemicals around. Ammonia can easily damage the cat's sense of smell.