Tongueless Frogs, AglossaDavid Cannatella This tree diagram
shows the relationships between several groups of organisms. The
root of the current tree connects the organisms featured in this
tree to their containing group and the rest of the Tree of Life.
The basal branching point in the tree represents the ancestor of
the other groups in the tree. This ancestor diversified over
time into several descendent subgroups, which are represented as
internal nodes and terminal taxa to the right. You can click on
the root to travel down the Tree of Life all the way to the root
of all Life, and you can click on the names of descendent
subgroups to travel up the Tree of Life all the way to
individual species.close box Pipids are highly aquatic frogs
that rarely if ever venture out of water. They have several
adaptations to aquatic life, including the loss of the tongue
(tongues are not generally useful for feeding in water), and the
presence of lateral line organs, which are used to detect wave
motion in water (these ar