Here's a rush growing right by the pond, and it's green even in winter. Rushes differ from grasses and sedges in that their fruits are capsules. The frozen pond is home to several kinds of hibernating animals like turtles and frogs . These cold-blooded animals bury themselves in the mud, lower their body temperatures and heart rates, and basically shut down for the winter. As we continue past the pond, you'll notice the flaming red fruits of the winterberry holly.
Songbirds eat the berries.
You might wonder why so many berries haven't yet been eaten. Well, all of these berry-bearing plants rely on birds to disperse their seeds, so their berries ripen at different times, to ensure that only a few plants have mature berries at any one time. This gives the berries a greater chance of being dispersed. We will now recross College Road and head up the stairs by Pendleton West, then the stairs between Pendleton and Jewett, and we'll stop in the Academic Quad.