Rat snakes have, in the past few years, undergone
a major taxonomic revision.
A 39 slide, full colour photographs, powerpoint on Variation and Classification, including information of all of
the major taxonomic groups.
DNA analysis has revealed new relationships between lifeforms and resulted in
major taxonomic changes.
** Intransitive competition is common across five
major taxonomic groups and is driven by productivity, competitive rank and functional traits — Santiago Soliveres et al. — Journal of Ecology
Not exact matches
The fungal sample was interesting partly as it represented a
major component of the observed fungal population in a pine forest and it responded positively to elevated CO2 and nitrogen amendment treatments that mimic future environmental conditions — yet the sample's exact placement in the
taxonomic order was unknown.
This reveals a greater ecological diversity in an early mammaliaform clade at a more fundamental
taxonomic level not only between
major clades as previously thought.
Each of those
major groups of animals is in fact a «class» in the formal
taxonomic sense: Class Amphibia, Class Reptilia, Class Aves, and Class Mammalia.