Despite the variety of their physiological function and differences in physical properties--silk is a flexible fiber, horn a tough rigid solid, and the enzyme pepsin water soluble crystals--proteins are sufficiently similar in molecular structure to warrant treating them as a single chemical family.
Disney's 'Tower of Terror' Closing to Make Way for New 'Guardians of the Galaxy' Ride. Looks like another Disney attraction is joining its sizable graveyard of defunct rides.
Busch Gardens theme park closes water ride after a similar attraction in Australia crashed killing four people. The Congo River Rapids ride was closed 'out of an abundance of caution'. Two men and two women died while on the Thunder River Rapids ride.