Gene editing for sex selection

[Catherine]

That is a good video. It makes some very good points about sex determination. It is very complex and has many variations. 
So thinking they can easily do sex selection for offspring is a bit over simplifying things. It might work for some species. It might work for some species for a while and then the species will find a way to go back to producing males and females. All of these things need to be considered.

I was more thinking about the ethics and the dangers. What if they find a way to stop males from being produced in a species. If it spreads to the whole species it could be a problem. (Or else the animal will find a way to work around this)
What if this male suppression gene editing spreads to other species. We could have a problem. Gene editing is not so precise. Even if it was, are we so sure of what we want to create. Do we understand what we would be getting if we make a change?

Then there is the big question, should we do this. Do we have a right to alter other species this way. We already make some serious changes in the animals we use as food.   Does this go too far. Have we already gone too far.

Before we actually do this we should look at all the questions carefully. It might not be possible to undo things once we have done them.
It is a lot to think about.