Is there a lesson for humans? Sphen the penguin has died aged 11, leaving his same-sex partner Magic to sing alone. Some think we can learn from their loving, prejudice-free relationship.
One half of world-famous couple dies
Rest in peace: Sphen the gentoo penguin and his partner Magic shot to stardom in 2018 when they fell in love at the Sydney Aquarium, later adopting and raising two chicks. Glossary
Gentoo penguin - A penguin species with a prominent tail.
Euthanise - To humanely and painlessly kill an animal to end its suffering.
Syllabus - The subjects or topics in an academic course - e.g. A-level Geography.
Mardi Gras - French for "Fat Tuesday", for eating up richer, fatty foods. In English known as Shrove Tuesday, preceding Ash Wednesday (see below).
Homophobia - Prejudice or discrimination due to a person's sexuality.
LGBT - Stands for lesbian, gay, bisexual, and transgender. The initialism, as well as some of its common variants, functions as an umbrella term for sexuality and gender identity.
Bisexual - Sexually or romantically attracted to both men and women.
Macaques - A type of monkey found in Asia, North Africa and Gibraltar.
Ecologist - A person who studies the relationship between the air, land, water and animals.
Primordial - Existing at or from the beginning of time.