That depends on what type of country that Christians will enter. For example, if the country is somewhere in the Middle East where it has a large concentration of Muslim population, then the Christians should be careful about freely expressing their practices around Muslims. Persecutions of differing religions are particularity high in those areas. Standard dangers also should apply, including rape, abduction, etc.
they fight other gorilla
Deers can face bieng hunted by other Humans
They faced the danger of the open sea, countries that they had invaded and made enemies with.
disease and other animals that are stronger.
bald eages and other birds of prey
security (or reduced security), is one problem. The other is the issue for countries that were doing really well before globalization, they now face a future of diminishing world economic power. However the countries that had extreme poverty, will improve.
Poaching. Destruction of forests and poaching of tiger prey
what dangers do balck spider monkeys face
The pandas face predators
They face racoon's
other great whites, humans, orcas
sea turtles face many dangers