The next branch on the phylogenetic tree is liverworts.

系统发育树上的下一个分支是苔类植物。

Sequence alignment, building phylogenetic trees to look at evolutionary relationships.

序列排列，建立系统发育树来观察进化关系。

This family tree diagram is called a phylogenetic tree or cladogram.

该家谱图称为系统发育树或分支图。

And based on these haplogroups, they used mathematical models to come up with an evolutionary, or phylogenetic, tree.

基于这些单倍群，他们使用数学模型提出了进化树或系统发育树。

As I've mentioned before a phylogenetic tree is a branching diagram showing the relationships between species.

正如我之前提到的，系统发育树是一个显示物种之间关系的分支图。

We use a computer program to help us develop phylogenetic trees.

我们使用计算机程序来帮助我们开发系统发育树。

It is an interesting challenge to develop a phylogenetic tree with the fewest number of changes.

开发变化最少的系统发育树是一项有趣的挑战。

As we find new species of dinosaurs, we need to place these new finds in our phylogenetic tree.

当我们发现新的恐龙物种时，我们需要将这些新发现放入我们的系统发育树中。

Phylogenetic trees are constructed using the principle of parsimony.

系统发育树是使用简约原则构建的。

In addition, you'll interact with dinosaur bones and phylogenetic trees, using an interactive module built just for your use in this course.

此外，您将使用专门为您在本课程中使用而构建的交互式模块，与恐龙骨骼和系统发育树进行交互。

We can get a feel for how these plant types came to be by referring to the plant kingdom's phylogenetic tree, a diagram that shows us how organisms evolved over time.

我们可以通过参考植物界的系统发育树来了解这些植物类型是如何形成的，这张图向我们展示了生物体是如何随着时间进化的。

The search for the components of language in nonhuman animals now extends to the far reaches of our phylogenetic tree, encompassing creatures that may communicate in radically unfamiliar ways.

对非人类动物语言成分的探索现已延伸到我们系统发育树的最深处，涵盖了可能以完全不熟悉的方式进行交流的生物。