The phrase "also been explained by" is correct and usable in written English.
It can be used when discussing additional sources or perspectives that clarify or elaborate on a particular topic or concept.
Example: "The phenomenon has also been explained by various researchers in the field, providing a broader understanding of its implications."
Alternatives: "further clarified by" or "additionally described by".
Body structure and the amount of body fat have also been explained by evolutionists in terms of human adaptation to differing environments.
The South China Sea throughflow and variability have also been explained by the Island Rule (Qu et al. 2005; Wang et al. 2006).
Demand for shark fin delicacies in China has also been explained by some analysts as a product of the growing size of China's middle class, where ostentatious shows of consumption and wealth are fashionable.
The dissimilarities between European states in the field of citizenship have also been explained by what Brubaker (1992) refers to as different conceptions of nationhood, i.e. fundamental conceptions of what constitutes a nation (see also Favell, 1998).
Spatial patterns of crop-raiding have also been explained by factors such as the availability and distribution of water [5], the number of and distance to neighbouring farmlands [6] and forest-agricultural margins [6], [7].
The counting and initiation phase of XCI has also been explained by the presence of an autosomally encoded blocking factor or nuclear entity, of which one dose or one functional unit is present in the diploid nucleus, preventing inactivation of one X chromosome.
This reticence may also be explained by wanting to avoid triggering "safe-searching" filters.
But might the differences also be explained by higher rates of poverty among Arab Israelis?
The amount of the alleged fraud, around $100m, can also be explained by revenue recognition difficulties.
Or can they also be explained by global economics and pollution thousands of miles away?
Genetics might be the explanation, but this aversion might also be explained by environmental factors.
