Wikipedia maintains an (incomplete) list of sequenced animal genomes here.
There are a few million living species of animals, we're not that close to sequencing them all, and listing them all doesn't make much sense.
I'd recommend starting from the animals that have been sequenced, and in particular, animals from particular families or smaller taxa, if you'd ...
I agree that the definitions can be somewhat confusing when first encountered.
Each nucleotide has a complement A-T, C-G. But the DNA strand are reverse-complementary because when aligned from 5'->3' they are not (necessarily) complementary.
DNA strand 5'-ATCCGG-3'
Since we want to write all ...
You've already basically got the idea of "genetically tractable": if we can readily modify an organism's genome using known techniques, then it's genetically tractable.
That's a moving target, of course, because the set of available techniques is constantly expanding, so this is more of a pragmatic definition than a taxonomic definition. It's a ...
I think that many of the applications that you mention require wildly different numbers of individuals. It would help to know more about goals, questions, organism details, etc.
For example, for simple population statistic estimates, you can depend on the large number of sites in the genome to get an accurate estimates (such as Watterson) from a single ...