Who are these people? Photo: Serrano1004/Pixabay Don’t say “parent,” advises a feature article in the National Science Teaching Association’s magazine. For a fun classroom activity, ask students to come up with new terms such as  “gene-givers” or “biological life transmitters,” suggest Sam Long, Lewis Steller and River Suh. Show students that myriad, naturally occurring families exist, such as same-sex swan couples who see 80% of their offspring survive to adulthood compared