Is there a theoretical maximum on the number of sexes a given species can have?
1399
Why do only two sexes exist for animals?
148567
Given $a,b$, what is the maximum number which can not be formed using $na + mb$?
143374
Elegant proof that maximum of sums is, at most, sum of maximums
118945
How do I know how many classical limits (if any) a given quantum theory is going to have?
109620
Can a purely biological account of man show a superiority over other animals?
121679
How much variation is there between DNA molecules from the same organism
145753
What is the maximum number of Locations Discovered that one can achieve in Skyrim?
145181
How can I prove the maximum number of edges?
25375
Probability of population to go extinct
28231
Is any quantitative property of the population a "parameter"?
37991
How many different sizes of infinity are there?
82086
How to calculate relatedness in haplodiploid organisms (mainly full sisters and full brothers)?
4782
Can we distinguish $\aleph_0$ from $\aleph_1$ in Nature?
36757
I can't determine the maximum natural number which is unable to be represented as $17\times x+23\times y$
66716
Does it make sense to classify all humans in a single species?
23474
How can the number of genes increase through evolution?
49673
How many organisms have ever lived on Earth?