CrowdScience - Why Do We Have Males and Females?

Sex is responsible for the large variety of life on earth. Without the two sexes there is no sexual reproduction which means no shuffling of the genetic make-up – and no survival in a changing environment. But why do we have two sexes in the first place and does nature determine your sex? It’s with these questions and more that listener Du from Singapore persuaded the CrowdScience team to investigate the weird and wonderful world of sex. You might think that Nature would have standardised something as important as ensuring the continuation of the species. Far from it – species do sex in many different ways – some stranger than others.

Presenter Marnie Chesterton unpicks the zoological oddities of sex and along the way learns about her own sex chromosomes. We also meet an unlikely bird keeper, who is the proud owner of a female duck that is morphing into a male. Will her boyfriend, a male mandarin duck, mind the change?

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presenter: Marnie Chesterton Producer: Louisa Field

(Image: Male and female mandarin ducks. Credit: Getty Images)

Opening Arguments - OA66: Sanctuary Cities

In this episode, the guys break down the recent decision by a federal court to enjoin the enforcement of President Trump's Executive Order 13768 regarding Sanctuary Cities. First, though, Andrew tackles a popular question from Brad Kalmanson (and others) as to whether Donald Trump can really make good on his weird threat to "break up" the 9th Circuit.  The answer will almost certainly surprise you. In the main segment, we analyze the Sanctuary Cities Executive Order and the Trump Administration's rather amazing legal "strategy" they orchestrated to try and defend it.  If you have Trump supporters in your news feed (or are one yourself!), you'll be amazed at what the administration did. After that, Andrew answers an in-person question from David at ReasonCon about the practice of law. Finally, we end with a brand new Thomas Takes the Bar Exam question #22 about selling a priceless work of art.  Remember that TTTBE issues a new question every Friday, followed by the answer on next Tuesday's show.  Don't forget to play along by following our Twitter feed (@Openargs) and/or our Facebook Page and quoting the Tweet or Facebook Post that announces this episode along with your guess and reason(s)! Recent Appearances: None!  Have us on your show! Show Notes & Links
  1. This is a nice primer on the creation of the current federal judiciary, beginning with the Federal Judiciary Act of 1789.
  2. Here is a link to the decision by the Northern District of California enjoining the enforcement of EO 13768.
  3. This link is to the text of EO 13768.
  4. And this is 8 U.S.C. § 1373, referenced in the EO.
Support us on Patreon at:  patreon.com/law Follow us on Twitter:  @Openargs Facebook:  https://www.facebook.com/openargs/ And email us at openarguments@gmail.com  

The Gist - Observing Obscura Day

A hallowed day is nearly upon us: Obscura Day on Saturday, May 6. Think of it like a worldwide quest to discover all things odd and remarkable. The whole thing was dreamed up by the surveyors and spelunkers at Atlas Obscura. Today, Mike steps in as your Obscura Day scout, venturing into the Lite Brite Neon Studio in Brooklyn. Saturday’s expeditions include a kayaking trip to a ship graveyard in Maryland, an Absinthe demonstration in London, and a tour of the world’s first nuclear power plant in Idaho. Check out Atlas Obscura’s website to find an Obscura Day event near you. In the Spiel, health care is supposed to be the one intimate area where a politician’s lie won’t work. So… what’s going on?  Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Bay Curious - It’s-It! The San Francisco Treat That Sparked a Cult Following

San Franciscans have been having a love-affair with this ice cream treat since 1928.


Reported by Alyssa Kapnik Samuel and Seth Samuel. Bay Curious is Olivia Allen-Price, Vinnee Tong, Paul Lancour, Penny Nelson, Suzie Racho and Julia McEvoy. Our managing editor is Ethan Lindsey. Vice President for News is Holly Kernan. Theme music by Pat Mesiti-Miller.


Ask us a question at BayCurious.org.

Follow Olivia Allen-Price on Twitter @oallenprice.

The Gist - Sarah Manguso’s Words to Live By

Only a fire can prove what survives a fire. Well, no, says Sarah Manguso. It only proves what would survive that fire. Manguso, an essayist and poet, offers modern wisdom and witticisms in her new book 300 Arguments.  Plus, Donald Trump gets the Ken Burns treatment.   

Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

Join the discussion of this episode on Facebook.

Learn more about your ad choices. Visit podcastchoices.com/adchoices