David Boreanaz and Emily Deschanel star in “Bones”

Bones are the final remnants we leave behind after death. The structures that support our bodies are hidden from sight by layers of skin and muscle, but when they are exposed, they can speak volumes about our lives and habits -- if you can interpret the clues they reveal. That is the specialty of Dr. Temperance Brennan (Emily Deschanel, "My Sister's Keeper," 2009), a forensic anthropologist working at the fictional Jeffersonian Institute in "Bones," which returned from its mid-season hiatus last Thursday and airs a new episode Thursday, April 2, on Fox.

For the better part of 10 seasons, Brennan and her FBI-partner-turned-husband, Special Agent Seeley Booth (David Boreanaz, "Buffy the Vampire Slayer"), have been investigating murders involving skeletal remains. When typical forensic investigation techniques fail to turn up any leads, Brennan and her team -- including Angela Montenegro (Michaela Conlin, "Open Window," 2006), her husband Dr. Jack Hodgins (T.J. Thyne, "Angel") and Dr. Camille Saroyan (Tamara Taylor, "Party of Five") -- use their expertise to reconstruct the faces and lives of the deceased.

Season 10 of "Bones" has been a roller-coaster so far, and that isn't likely to change any time soon. Beginning with an ongoing conspiracy and the death of one of the Jeffersonian's own, the first half of the season closed on the show's milestone 200th episode. The last episode of 2014 was a 1950s Hollywood tribute to Alfred Hitchcock, and the first episode of 2015 included a touching tribute to the deceased team member on what would have been his birthday.

The rest of this season will also include an exciting new addition to the quickly expanding Booth family. Booth and his ex-girlfriend Rebecca Stinson (Jessica Capshaw, "Grey's Anatomy") had a son named Parker (Ty Panitz, "How to Eat Fried Worms," 2006) four years before the series began. While Parker lives with his mother, he is featured in various episodes and was his father's best man when he married Brennan.

When Deschanel became pregnant (in real life!) with her first child in 2011, Fox decided to roll with it and write the pregnancy into the show. That's where the similarities ended, however. Deschanel gave birth to a son named Henry after what we can only assume was an ordinary labor. Brennan, on the other hand, went into labor at the conclusion of a prison riot and, due to how far away from the hospital she was, gave birth to her daughter Christine (played by twins Ali and Susanne Hartman, "Baby Daddy") in an inn's stable.

Now, Deschanel and her husband, David Hornsby ("It's Always Sunny in Philadelphia"), are expecting their second child, and "Bones" showrunners have confirmed that this baby will also be written into the series. There's no word yet on whether Christine (portrayed by newcomer Sunnie Pelant after infancy) will have a younger sister or a brother to play with, but Brennan and Booth will attempt to conceal the pregnancy from the rest of the Jeffersonian team for a while.

T.J. Thyne as seen in “Bones”

Back in season 7, the "Hollywood Reporter" sat down with Deschanel to discuss being a new parent. At the time, the actress took note of how closely her experience in real life matched up to the related storylines in the show.

"I'll experience something in an episode, and I'm shocked because it's exactly what I'm going through," Deschanel said. "Brennan has a different take on things, always. It's been fun to see how that unfolds."

Presumably, having covered the experience of being a first-time parent already, "Bones" will have more freedom to explore different aspects of parenthood, as well as how Christine adjusts to not being the baby of the family anymore.

Whether or not we'll actually get to see it happen, though, is still up in the air.

As of press time, Fox hasn't officially confirmed whether "Bones" will be renewed for an 11th season. Ratings for the series peaked during season 6, when new episodes drew in an average of 11.57 million viewers, and the show ranked as the 29th most popular prime-time show over the whole season. While the ratings have declined since then, season 9 still ranked at 40 on the list with nearly 8.5 million viewers per episode, 20 spots ahead of where "Bones" ranked in its freshman season when it was drawing in roughly the same numbers.

And while there is no official word, speculation and the quotes we do have from Fox executives give a positive outlook for loyal "Bones" fans.

"Nothing would make us happier than to do another year," Dana Walden, co-chairman/CEO of Fox Television Group said at the Television Critics Association winter press tour.

The uncertainty seems to revolve around the fact that several key contracts are up for renewal after the current season of "Bones." A renewal will likely hinge on successful negotiations rather than the ratings. As it is, the length of the show's run to date has already exceeded many expectations.

"I never thought I'd be doing this long enough that I'd be having a child while all of this was happening," Deschanel said in the "Hollywood Reporter" interview, "or that they'd write that in."

"Bones" fans waited nearly four months for the show to return from its mid-season hiatus, and it doesn't look like they'll be disappointed by season 10's second half. Catch a new episode of "Bones" airing Thursday, April 2, on Fox.