As the world's most diverse and abundant species, the tiny yet mighty beetle plays crucial ecological roles in nearly every environment. Why are these colorful and ingenious creatures often regarded as "the most important species on the planet"?

The Blue Jays-Rangers rivalry ignited in the 2015 ALDS with Bautista's bat flip. In 2016, tensions exploded when he was hit, slid hard into second, and took Odor's brutal punch.

In 1996, Louisiana Sheriff's Deputy Chad Louviere held six women hostage inside a bank where his ex-wife works.

Donald Trump's global tariffs are blocked by a federal trade court. And new corruption concerns rise as Trump profits from his office and pardons political allies. Sen. Amy Klobuchar, Kenneth Vogel, and Sen. Sheldon Whitehouse join Lawrence O'Donnell.

Patrick and Kirsty revisit a 15-year-old ocean kyanite dig site. Kyle and Glenn must pivot from quartz to black agate to reach their huge dig target.

Richard Acosta, Jr. is being tried for capital murder, accused of being the getaway driver for his 14-year-old son, Abel. Surveillance footage at a Texas convenience store captures Abel shooting four teens, killing three. To date, Abel remains at large. Will Acosta be sentenced to life or will the jury believe he was unaware of his son's actions?

Sara needs some peace and quiet and heads home to the island. When Erik invites her to join him on his Thursday night drinking spree, problems arise.

1. Seth Meyers ("Late Night with Seth Meyers"). 

2. Sen. Cory Booker (D-N.J.). 

3. Musical Guests Blues Traveler and Gin Blossoms.

The fallout of events continues.

If variety is the spice of life, then things are about to get fiery with Stephen King's Different Seasons, Shaquille O'Neal's career, the history of the banjo, and, because why not, chicken breeds.

It's the grand final of Taskmaster Australia! Our teams unite to give the most fearsome charge. Tommy gets intimate, Emma gets rid of the evidence, who will beTaskmaster champion for season four?

Producer and screenwriter Shonda Rhimes and her creative partner Betsy Beers sit down with "GMA" co-anchor Robin Roberts; "GMA"'s Janai Norman reports on Quinta Brunson receiving the key to Philadelphia; The Right Fit series with "GMA" lifestyle contributor Lori Bergamotto, featuring sunglasses; Deals & Steals with ABC e-commerce editor Tory Johnson.

Branden Jacobs-Jenkins, writer, and LaTanya Richardson Jackson, actor, in Broadway show "Purpose."

Rob Manfred, MLB commissioner, and Kim Ng, AUSL commissioner.

NEVER TOO LATE: Featured host Vlad Duthiers attends an acting class and partners with Chloe Fineman, actor and comedian, in an attempt to land a film role.

102-Year-Old Doctor Shares His Secrets to Longevity and a Life Well Lived. Steals & Deals: Curated Box with Jill Martin. Magic on the Plaza with Rob Lake. 

Chloe Taylor has the biggest night of her career, and not a day later her husband winds up dead. Now cops are asking a lot of questions she doesn't want to answer, and even worse, they called her sister.

Chloe and her sister Nicky are back together but things are bumpy, and not just because Detective Guidry seems too interested in Ethan.

A day in court doesn't go as planned, and Chloe goes somewhere surprising for emotional support.

Catherine throws a memorial for Adam that no one wants to go to. Chloe and Nicky have very different memories of just about everything.

Nicky tries to shake off a bad night. Chloe tries to figure out what Adam was up to when he died. And the trial is starting.

The sisters take the stand, but what truth will they tell? Guidry's temper flares.