The phrase "at different varieties of" is not correct in standard written English.
It can be used when discussing various types or categories of something, but the phrase should be restructured for clarity.
Example: "We should look at different varieties of fruits available in the market."
Alternatives: "at various types of" or "at different kinds of".
Then we would spend hours looking at the different varieties of said pet and have to ask the poor souls who worked at the store the questions we came up with from our research.
This paper aims at characterizing the different varieties of residual RHA produced in Brazil and at investigating the microstructure of cement pastes with 20% replacement of ordinary cement by RHAs which presents high and low amorphous silica content.
As Dr Charles Lockwood of University College London puts it: 'This discovery is a wonderful demonstration of the fact that there are many different ways to be human.' Indeed, only a few dozen millennia in the past, we now know there were at least three different varieties of human being; Homo sapiens, Neanderthals and, as we have just discovered, Homo floresiensis.
On a boat ride on the Lake of a Thousand Islands, in Zhejiang Province, a woman named Wei Cui Lan, one of China's leading tea authorities and one of the last women to graduate from tea school before the Cultural Revolution, showed them the methods required to brew at least 30 different varieties of green and oolong tea.
At least six different varieties of malware were discovered hidden in applications that were distributed through a Chinese download service.
(We counted at least a dozen different varieties of cherry tomatoes).
Using the same climate models as the Intergovernmental Panel on Climate Change, Andy Ridgewell led a team of scientists at the University of Bristol to calculate how different varieties of crops would affect global temperatures.
Do keep an eye out for different varieties of bananas at Asian supermarkets, because the flavours vary hugely: some taste more of tart apples, or like sweet pineapples, while others have a tutti-frutti complexity.
