He instinctively scratched his head when faced with a difficult problem.

He scratched his head when faced with a difficult problem.

He is bright, so he was able to solve the problem immediately.

A dehiscent fruit is a type of fruit that naturally splits open to release its seeds when it matures.

He is studying the function of the dilator naris.

In order to maintain health, it is important to adhere to the saying, 'Eat moderately to avoid the doctor.'

Konohananosakuyahime is an important goddess in Japanese Shinto.

She took a pose where her legs formed an M-shape.

His new yacht has a high-bow design.

Cephalopods are a type of marine life that includes squid and octopus.