European imperialism in the 19th century was motivated by the desire of acquiring raw materials for their industries. Other motives were for power and territory expansion. In the 19th century, power can be seen through how many colonies were under a European nation. since this also entails to greater economic and political power.
There are quite a few birds famous for doing ritualized mating dances, so I would only list 5:
The Red Capped Manakin,
The Black-footed albatross,
The Western and Clark's grebe,
The Superb bird of Paradise,
& The Victoria's riflebird.
<span>An increase in scientific and medical discoveries improved life expectancies.
</span>The best possible explanation for the changes in Europe's population since 1750 is that an increase in scientific and medical discoveries improved life expectancies.In fact, it was around this type that basic hygiene norms were implemented, as well as some mortal diseases were cured or to improve lifbetter treated. Moreover, the discovery of vaccinations helped greatly to improve life expectancies.
Christianity is the world's largest religion. They believe that Jesus is the Son of God who was professed to come down to Earth.
Buddhists believe that the ultimate goal is to obtain Nirvana. This can be achieved by practicing the Noble Eightfold Path.