GM (genetic modification)
Bears in their natural environment are not a problem. When humans enchroach on this environment, humans create problems.
the problems that happen are that people
Genetics, environment and health
Yes.
Things may be harmful to the environment because they pose direct or indirect danger to living things. For example, wastes may lead to water contamination thus killing aquatic animals and posing health problems to humans.
Like all living animals, giraffes do have health problems. They get most diseases and viruses just like us humans.
Yes, Lifestyle is the leading cause of the health problems that humans have nowadays.
Problems created by humans with large scale indulgence in the environment. An example of a large scale environment can be a city such as London and the issues could be like the pollution caused by the cars, so a lot of CO2 emissions are being produced
There is so much destruction of the environment (and other solvable problems) because humans are basically stupid.
Special health problems the tiger is facing now has to do with humans. Humans are inbreeding the cat for profits. In return, the animals are born with a lot of issues such as curved spines. The tiger is also an endangered animal due to the fault of humans.
more harmful rays from the sun reach earth
Many types of spiders have venom that can cause serious health problems in humans. The venom of some species can kill if not treated.