Once Upon a Time... Life (1987–1988)

1. S01E01The Planet CellSeptember 13, 1987 9.0The world of cells is incredible! Activating enzymes, stopping viruses, and managing the body’s police force: it’s all in a day’s work for T
2. S01E02BirthSeptember 20, 1987 9.0After the first cell is fertilized, division and diversification take place to create the 60 trillion cells of the human body.
3. S01E03Season's bestThe Body SentinelsSeptember 27, 1987 10.0The body’s police force is taught to neutralize its enemies (microbes and viruses), which reproduce at an alarming rate! It’s a very complex
4. S01E04The Bone MarrowOctober 4, 1987—Red blood cells, the body’s police force, are created in the bone marrow but sometimes, the factory breaks down and wayward policemen come o
5. S01E05The BloodOctober 11, 1987 7.7The steadfast red blood cells have come down with the flu! Pedrito and Psi get some help from the Teacher’s antibodies to beat the enemy.
6. S01E06The Tiny PlateletsOctober 18, 1987 10.0Pedrito cuts his finger with a dirty knife. While the platelets try to cure the wound, the white blood cells fight off the filthy invaders.
7. S01E07The HeartOctober 25, 1987 10.0Globus takes Hemo and Globina on a tour through the human body’s cathedral: the heart and circulatory system. It’s an impressive adventure.
8. S01E08BreathingNovember 1, 1987 10.0Air bubbles travel from the nose to the lungs. In the swampy, mucus-filled areas, they meet the red blood cells that transport them around t
9. S01E09The BrainNovember 8, 1987 10.0Teacher introduces Hemo and Globina to the most mysterious organ: the brain. They learn about behavior, the senses, and much more.
10. S01E10The NeuronesNovember 15, 1987 10.0The body’s messengers run around sending and receiving information about feelings like hunger and cold. They work day and night and never ta
11. S01E11The EyeNovember 22, 1987 10.0Eyes are magical! They break down and transmit images to the brain. What happens if a speck of dust gets into one? It’s tear enzymes to the
12. S01E12The EarNovember 29, 1987 10.0The ear is composed of cells that sense vibrations and transmit them to the brain. Then, the brain transforms them into words and sounds.
13. S01E13The SkinDecember 6, 1987 10.0Skin is the first barrier against external aggression and helps eliminate waste. From cuts and scrapes to bug bites, it stays pretty busy.
14. S01E14The Mouth and the TeethDecember 13, 1987 8.7Yum! Candy! But sugar strengthens the bacteria around the gums and attacks the tooth enamel, which can cause cavities.
15. S01E15The DigestionDecember 20, 1987 10.0After a tasty meal the food starts its journey to the stomach where it will be broken down depending on what properties it has. But don’t ov
16. S01E16The Liver FactoryDecember 27, 1987 10.0The liver is fundamental. It doesn’t weigh a lot but it uses almost as much oxygen as the heart! It makes proteins, corpuscles, and helps he
17. S01E17The KidneysJanuary 3, 1988 10.0Toxic elements head to the kidneys where they are categorized. The good ones are salvaged but the bad ones are sent to the bladder. Have a g
18. S01E18The Lymphatic SystemJanuary 10, 1988 10.0The huge lymph network transports everything to the body’s factories. Infectious intruders beware! This place is well protected.
19. S01E19The Bones and the SkeletonJanuary 17, 1988 10.0The architecture that protects the body’s organs is magnificent! However, even the slightest fracture can cause significant damage.
20. S01E20The Muscles and the FatJanuary 24, 1988 10.0Muscles account for almost half the weight of the human body. They also need a ton of energy to do their jobs correctly.
21. S01E21Toxin WarsJanuary 31, 1988 10.0Combat teams act as preventative barriers and are prepared to defend the cell’s nucleus against toxic gases and contaminants.
22. S01E22The VaccinationFebruary 7, 1988 10.0Vaccines bring us so many benefits! People who don’t get vaccinated run the risk of contracting a disease that is stronger than our natural
23. S01E23The HormonesFebruary 14, 1988 10.0At the heart of the hypothalamus, Teacher shows us how this region sends out orders to satisfy all the body’s needs.
24. S01E24The Chain Of LifeFebruary 21, 1988 10.0A walk in the forest is the perfect way to learn about the extraordinary food chain that exists between the sun, vegetation, animals, and ma
25. S01E25Repairs and ChangesFebruary 28, 1988 10.0Pedrito is 8 years old and is tired after a long day. When he goes to bed, Teacher and his helpers observe the activity that continues durin
26. S01E26And life goes on...March 13, 1988 10.0Pedrito wants to know why his grandpa can’t play ball anymore, so he tells Pedrito an old story about a sphinx.

Season 1 ranked & reviewed