Sarah Palmer

Introduces the physical appearance, habits, diet, and habitat of the blue whale and threats to its existence.

Introduces the physical appearance, habits, diet, and habitat of the humpback whale and threats to its existence.

Describes the physical characteristics, habits, and natural environment of the world's most common whale, the finback.

In the spring of 1954, one man's lust would lead to deception and death, with the help of an obscure but deadly insect, the Spanish fly.

Audrey Marie Hilley's husband, Frank Hilley, supposedly died of infectious hepatitis in 1975. He had been ill for some time, but because his symptoms aligned with hepatitis, no tests for poison were carried out. Audrey Marie's daughter then became ill – eventually her physician suspected heavy metal poisoning.

Joe Cinque lived in Canberra with his girlfriend, Anu Singh, who was studying law the Australian National University. They were both young and set for a bright future. However, it all took a turn for the worse when Anu Singh began to declare to a select few friends that she was going to kill her boyfriend – it was a supposed suicide pact, only it seems Joe didn't know about it.

When Orange County detective, Yvonne Shull, opened up Linda Curry's cold case file, it began a seven year journey into the toxic machinations of a consummate liar. Linda Curry's family were certain the murderer was her husband – they believed he had been slowly poisoning her to death. They were right.

Within hours of being rushed to a West London hospital one cold January night in 2009, Lakhvinda Cheema would be dead and his young fiancé clinging to life in intensive care. The couple showed every vicious symptom of being poisoned.

Larry McNabney was murdered in September, 2001, but his death was so well concealed that no one reported him missing for almost three months.

Richard Overton led a double life, marrying whilst already married. It's a scam he led for a year and a half, but his downfall led to divorce from his first wife and an annulment from his second.