High-resolution fossil data show that during the Late Paleozoic, global cooling promoted rapid evolution and diversification of marine life, while abrupt volcanic warming caused mass extinctions.

Karnataka High Court stays notice issued by Lokayukta police to former SP Shrinath Mahadev Joshi in connection with an extortion case involving Ningappa Savant. Investigation against others continues.

Latest Chicago and local news from Chicago Tribune. Find top news stories from Chicago suburbs, downtown, neighborhoods and more ...