They can swallow solid food
Harvestmen do not have either silk or venom glands. Although some of the over 6,650 species of harvestmen do not have eyes, most have a single pair of eyes in the middle of the head, oriented sideways.
What is one thing which distinguishes narwhals from dolphins and most other whales?
A. They have teeth
B. Their neck vertebrae are jointed, not fused
C. They have no dorsal fin
D. They are Antarctic predators
What physical adaptation particularly distinguishes the large and critically endangered Titicaca water frog (Telmatobius culeus)?