The world of math, to use one of his favorite metaphors, is made up of different continents, seemingly isolated from one another: Number theory is about the properties of numbers, harmonic analysis is concerned with the properties of wave functions, the study of Riemann surfaces deals with the geometries of two-dimensional manifolds, and so on.
Interestingly, they are found worldwide in all part of different continents i.e. Africa, Asia, Europe, Australia and America (Hughes and Chandran [1997]).
"The ecosystems of different continents are intimately interconnected by climate, fugitive dust, toxins, and human activities and health -- think epidemics, resource wars (possibly turning nuclear) and so forth, and thresholds are typical of all of them," Ehrlich said.
Our comparative review on the adaptive responses of trees to flooding in four tropical freshwater floodplains of different continents demonstrates that substantial data about the floodplain tree flora, its ecology and functioning are lacking.
These were also estimated for European, American, and other countries separately, as well as separately for groups of countries of different continents, to investigate whether the crisis' impact varied in different regions.
The heterogeneity of overall sitting time between countries of different continents has been documented, with reports indicating the lowest median values in Portugal, Brazil and Colombia (medians ≤ 180 min/day) and the highest values in Taiwan, Norway, Hong Kong, Saudi Arabia and Japan (medians ≥ 360 min/day).
Although the ants have their differences, different species of ants on different continents have all developed the same behavioral traits.
Comparison of the nucleotide sequences of related coronaviruses from different species of bats on different continents is likely to provide information about coronavirus evolution.
Comparisons of strata on different continents, and looking at the specific kinds of sediments and how they form will tell us some things about climate and about movements in the region involving rifting or colliding of continents.
Faunal Interchanges and Invasive Alien Species: Consider biogeographic distributions, as of flightless birds on different continents, or of marsupial mammals.
I have teams of people on different continents who have their ear to the ground.
