Ochre refers to any rock rich in iron oxide that yields red, yellow, or brown pigments.

赭石是指任何富含氧化铁的岩石，能产生红色、黄色或棕色颜料。

I really liked the colors because they're light, I have very pigmented red skin.

我真的很喜欢这些颜色，因为它们很浅，我的皮肤很红。

Squid skin contains thousands of tiny organs called chromatophores, each made of black, brown, red or yellow pigments and ringed in muscle.

乌贼的皮肤含有数千种称为色素细胞的微小器官，每种颜色均由黑色，棕色，红色或黄色色素制成，并在肌肉中环绕。

And those shrimp and red  shellfish contain a red pigment called astaxanthin, and eventually that  pigmentation carries over to these ibises.

那些虾和红色贝类含有一种叫做虾青素的红色素，最终这种色素沉着会转移到这些朱鹭身上。