3月15日13時に第15期公募情報を公開いたしました。
4月1日13時より応募者登録サイトへの登録が可能です。
Information on the 15th call for applications was opened at 13:00 on 15 March.
Applicants can register on the registration website from 1 April at 13:00.
Right-handed snakes and left-handed snails
Despite their name, most Bilateria (to which the majority of animals belong) are not strictly bilaterally symmetric. Snails represent a striking example. Every snail has either a dextral (clockwisely coiling) or a sinistral (counter-clockwisely coiling) shell. The lineages of sinistral snails had been arisen multiple times from dextral ancestors by evolution of left-right reversal. However, because dextral and sinistral snails can hardly copulate with each other, sinistral variants should be selected against by natural selection. Therefore, the origins of sinistral snails had been puzzling. Here, I will talk about how I have solved this mystery by verifying my "right-handed snake hypothesis" and what is the next.