  New features are reported in precision measurements of the complex microwave
conductivity of high quality $YBa_{2}Cu_{3}O_{6.95}$ crystals grown in
$BaZrO_{3}$ crucibles. A third peak in the normal conductivity,
$\sigma_{1}(T)$, at around $80K$, and enhanced pair conductivity
$\sigma_{2}(T)$ below $\sim 65K$ are observed. The data are inconsistent with a
single order parameter, and instead are indicative of multi-component
superconductivity. Overall, these results point to the presence of multiple
pairing interactions in $YBa_{2}Cu_{3}O_{6.95}$ and also provide a natural
explanation to account for the low temperature $35K$ conductivity peak observed
in all $YBa_{2}Cu_{3}O_{6.95}$ crystals.
