Embryos shape their limbs: a key discovery of "genetic brakes"

76 points by gmays a day ago on hackernews | 6 comments
HN title mangling strikes again. “How embryos shape their limbs” and “Embryos shape their limbs” are completely different titles for a discovery.

drekipus | 21 hours ago

How is it different to the first line of the article? "Canadian scientists have made a significant advance in understanding the mechanisms that enable embryos to properly form their limbs"

canyp | 19 hours ago

Because the discovery is how, not whether.

popalchemist | 18 hours ago

The mangled title removes the sense of a qualifier.

tim333 | 5 hours ago

Why do people do that? I've been on HN a while and have never figured how changing "How x" to "x" helps anything or complies with any guidelines or anything like that. The guidelines have an example specifically leaving a how in there:

>we'd appreciate it if you'd crop it. E.g. translate "10 Ways To Do X" to "How To Do X,"

Any ideas?

totetsu | 19 hours ago

They've found some real chemical P and S for the turing patterns