Half-remembered board game ID question: In the mid-'90s, my family was visiting some friends who owned a strange board game involving evolution, species, a hexagonal grid, and lots and lots of dice. What was it? [more inside]
Is there a website out there where I can enter the names of two species and be given the approximate date when their last common ancestor lived? Bonus points if it tells me what sort of species this ancestor probably was, and for showing me the part of the tree of life relating to these species. Thanks!
How do species come to have different numbers of chromosomes? [more inside]
Is there a limit to scientific advancement? If there is only a certain number of elements to the universe, will there reach a technology plateau? [more inside]
It's easy to tell when a species has gone extinct. How do you tell when a new species has evolved? Are there any criteria besides not being able to mate with the former species?