| But somewhat surprisingly, this terrestrial arachnid doesn't mind swimming, either. |
| A major characteristic of arachnid evolution is that segments were fused or lost. |
| All spiders are members of the arachnid order Araneae, which is divided into two suborders. |
| Does the arachnid feel a difference in the air between a bad ozone day and a good one? |
| The 400-million-year-old fossil organ belongs to a harvestman or daddy longlegs, a non-web-spinning arachnid, related to mites and ticks. |
| Without the bone chilling, sustained freezing temperatures of years gone by the arachnid population thrives. |
