What natural zones are distinguished by the richness of the species composition

What natural zones are distinguished by the richness of the species composition of the organic world? why? give examples.

Among all natural zones, the largest number of animal and plant species is found in humid tropical and equatorial forests. And in terms of the number of large mammals, the African savannah is in the lead. This is due to the fact that humid forests are constantly humid and warm, i.e. there are all the conditions that plants and animals need in this area. Also, there is practically no seasonality here. In the savannah, although there is seasonal rainfall, due to the high temperature, the plants sprout quickly and become food for many animals.