Facebook stepped up its patent dispute with Yahoo by filing its own lawsuit against the struggling Internet icon, the Associated Press reported Wednesday.

Facebook's lawsuit Tuesday came just weeks after Yahoo Inc. claimed that Facebook violated 10 patents covering advertising, privacy controls and social networking. Facebook denied Yahoo's allegations and accused Yahoo of violating 10 of its patents covering photo tagging, advertising, online recommendations and more.

Sculptor and printmaker Elizabeth Catlett, a U.S. expatriate renowned for her dignified portrayals of African-American and Mexican women and who was barred from her home country for political activism during the McCarthy era, has died at the age of 96, the Associated Press reported Wednesday.

Maria Antonieta Alvarez, Catlett's daughter-in-law, said the artist died Monday in a house in Cuernavaca, Mexico, where she had lived since 1976.

Sixteen pit bulls rescued from a dogfighting ring in the Philippines were euthanized Tuesday for lack of facilities to rehabilitate them and prevent them from reappearing in underground arenas, the Associated Press reported Wednesday.

Roughly 300 dogs were rescued in separate raids late Friday in Laguna province south of Manila, said Anna Cabrera of the Philippine Animal Welfare Society. Seventeen with the worst injuries were put down over the weekend, and the health of the living dogs and the progress of rehabilitating them will determine how many of them ultimately survive.

Oprah Winfrey says she still has faith in her troubled cable network.

Appearing Monday on "CBS This Morning," Winfrey told the show's co-host — and her best friend — Gayle King that she believes the Oprah Winfrey Network will fulfill its mission of transforming viewers' lives.

Google Inc. is building a data center in Taiwan — its third in Asia after Hong Kong and Singapore — to meet the rapidly growing online demand across the region, the company said Tuesday.

The three data centers — with investment totaling $700 million — will provide users with faster, more reliable access to various Google products, the Internet search giant said as its Taiwan facility broke ground in the western county of Changhua.

Most people associate the drama of the Titanic with icebergs, lifeboats, and flares fired into the night. Few think of the heartbreak that took place as news of the tragedy filtered home.

A tiny Slavic minority in Germany is keeping alive a long and intricate tradition of hand-painting Easter eggs with the help of feathers and wax.

Shortly after Christmas every year, Karin Hannusch gets to work decorating up to 600 eggs for the annual Easter market in Schleife, a center of the small Sorbian community.

The Miss Universe Organization announced Tuesday that it might reverse an earlier decision and allow a transgender woman to enter the Miss Universe Canada pageant.

Jenna Talackova, 23, was born male, leading organizers to disqualify her last month as a finalist in the 61st Miss Universe Canada pageant in May.

Gene scans for everyone? Not so fast. New research suggests that for the average person, decoding your own DNA may not turn out to be a really useful crystal ball for future health.

Today, scientists map entire genomes mostly for research, as they study which genetic mutations play a role in different diseases. Or they use it to try to diagnose mystery illnesses that plague families. It's different from getting a genetic test to see if you carry, say, a particular cancer-causing gene.

For years, women have been urged to get screened for breast cancer because the earlier it's found the better. Now researchers are reporting more evidence suggesting that's not always the case.

A study in Norway estimates that between 15 and 25 percent of breast cancers found by mammograms wouldn't have caused any problems during a woman's lifetime, but these tumors were being treated anyway. Once detected, early tumors are surgically removed and sometimes treated with radiation or chemotherapy because there's no certain way to figure out which ones may be dangerous and which are harmless.