Bats navigate at night using this system of acoustic orientation - nature's version of radar
Echolocation
A pasty bucket
Pale pail
Aeschylus is the _____ of Greek tragedy
father
Founder of Hull House settlement house (the more famous one)
Jane Addams
This Google product is the USA's most-used web browser
Chrome
Nectar-feeding bats pollinate the flowers that grow on the tips of this desert plant
Cactus
A trigonometric function's road indicator
Sine sign
This part of the amphitheatre where spectators sat
Theatron
Name of the age from 1870-1900ish that looked great on the surface but was full of corruption and poverty
Gilded Age
Old monitors needed a screensaver, which moved so it wouldn't burn in; today you can use this static image, also a home decorating item
Wallpaper
Bats are the only winged ones of this animal class
Mammals
The locks of a rabbit relative
Hare hair
The events in a play that would occur offstage - messengers would usually relate what happened
Violence, death
The Grange political party of farmers evolved into this party, aka the People's Party
Populist Party
A network security device that monitors and filters incoming and outgoing network traffic
Firewall
Vampire bat bites threaten livestock by spreading this disease, also found in stray/feral dogs
Rabies
The uninterested panel that runs an organization
Bored board
Dithyrambs, sung by 50 men dancing in circles, celebrated this Greek god of wine ("and madness")
Dionysus
The social movement within Protestantism that aimed to apply Christian ethics to social problems
Social Gospel
Many computer ads claim they have "free anti-virus" & this bad stuff "protection"
Malware
Each year as many as 20 million female Mexican free-tailed bats give birth at sites like Bracken Cave, outside of San Antonio in this U.S. state
Texas
To give up grain kernels
Cede seed
The plot of a Greek tragedy goes: In Medias Res, Recognition + Reversal, and this alternate word for denouement
Catastrophe
This act created the Interstate Commerce Commission
Interstate Commerce Act 1887
Sequences of comments on the same topic - like the things that make up a shirt
Threads