Which of these terms refers to the red, green, and brown marine algae growing along seashores?

下面哪个术语指的生长在海边的红色、绿色和棕色海？

They’re common structures in some red and brown algae.

它们红和褐中的常见结构。

And now, these scientists think they’ve found two species of multicellular red algae in some sedimentary rock from central India that dates back 1.6 billion years.

现在，这科学家认为们在印度中部的沉积岩中发现了两种多细胞红， 史可以追溯到 16 亿年前。

But in a paper published this week in the journal PLOS Biology, researchers from the Swedish Museum of Natural History think that they found 1.6 billion year old red algae.

但在本周发表在 PLOS Biology 杂志上的篇论文中，瑞典自然史博物馆的研究人员认为们发现了 16 亿年前的红。

Because of how big those cells are compared to the cells of other organisms, and some distinct structures inside those cells, they think it’s eukaryotic – specifically, a kind of red algae.

由于这细胞与生物体的细胞相比有多大，以及这细胞内部的不同结构， 们认为它真核生物——具体来说， 种红。

A paper published in 2000 identified one species of red algae from 1.2 billion year old fossils found in arctic Canada, which used to be the oldest eukaryote scientists were pretty sure of.

2000 年发表的篇论文从加拿大北极地区发现的 12 亿年前的化石中鉴定出种红，这曾经科学家们非常确定的最古老的真核生物。