the non-poisonous frog can wake up, show its bulging red eyes and present its yellow feet in a bid to make the would-be attacker think twice. Nictitating, or blinking, membranes are found in a ...

So the Central America native covers its eyes with a semi-transparent lid called a nictitating membrane, which allows the tiny frog some limited vision during rest. Experts believe the membrane’s gold ...

The dang nail, driven deep into a concrete wall, just wouldn’t come out. I worked at it, bending it one way, then the other, hoping to fatigue the high strength steel. I succeeded far better ...

The nictitating membrane of an American robin is revealed while eating cherries at E.T. Mahoney SP. Since fish have fluid constantly cleaning debris from their eyes, their use of eyelids for this ...