A course on cetacean life & conservation

The ocean's most remarkable minds

A free, story-led course on whales, dolphins and porpoises: where they came from, how they live, and what it will take to keep them.

Photo: Adam Ernster, Pexels

A quiet corner of the internet for the animals of the deep

Luna’s Echo is a free online course about whales and dolphins. It is told as a story, not a textbook.

Each module follows one thread, from the first four-legged ancestors wading into shallow seas to the great filter feeders and the conservation work being done today. The lessons are short and carefully sourced, and you can read them at your own pace. Your progress is saved as you go.

i.

Short, unhurried lessons

Most lessons take under ten minutes, so you can finish one with a cup of coffee.

ii.

Real science, plainly told

Every lesson is built on published research, and all of it is listed on the Sources page.

iii.

Hear the ocean

Many lessons include real recordings of whale and dolphin calls, from the blue whale's moan to the sperm whale's clicks.

Who was Luna?

Luna is a very special orca from Nootka Sound off the west coast of Canada. In 2001, he became separated from his family (the L-pod). One theory is that he was alone with his uncle when his uncle died, and Luna therefore was left all alone. Luna was not yet 2 years old at the time and had only just learned to catch his own food. Since orcas are very social, he started making friends with the locals in Nootka Sound since his own family was gone.

The following years were filled with disputes between the government and whale protection groups. Everyone had their own idea of how best to help Luna. Some wanted to give him the company he sought, and others insisted he should live without human contact. The dispute lasted for roughly five years and was likely hard for Luna. He befriended different people and groups only to have them stop reciprocating his friendship on the orders of the government. Some people insisted on giving him friendship and fought the government.

In the end, Luna was one day swimming around the back of a tugboat making friends, but was hit by the propeller and sadly did not survive. Luna is very special to me and is part of why I made this course. So I saw it as fitting that the course be named after him.

May he always be remembered.

If you want more of Luna’s story, you can watch the terrific documentary called The Whale (2011) by Mike Parfit and Suzanne Chisholm.

Luna’s story is a reminder of how much whales need us to understand them. That is what this site is for.

For anyone who has ever stopped to watch the sea

No background in biology is needed. You only need to be curious.

The curious

You've seen a documentary and want to know more about how these animals actually live.

Students & teachers

You want a clear, well-sourced introduction to cetacean biology, or something to use in class.

People of the sea

You dive, sail or go whale watching, and you'd like to understand what you're seeing.

How deep can a whale dive?

Hold your breath and scroll down through 3,800 metres of ocean, past dolphins, orcas and sperm whales, to the deepest-diving mammal on Earth.

Take the Deep Dive ↓
Animated portrait of Johan on a beach, holding a puppy in his lap

Hi, I'm Johan

I am a 31-year-old from Copenhagen, Denmark. I previously studied biology at the university, but did not finish. I have many hobbies, and the most important one is everything about whales. I have loved whales for as long as I can remember, but I think it really started with the movie Free Willy. Since then, my passion for whales has only grown, and I have a particularly fond memory of diving with wild dolphins. It was an experience that changed me, and I will never forget it.

I have built this course to share my passion for whales and hopefully inspire some of that passion in others. My greatest hope is that it can play a small role in saving whales and help show how amazing they truly are.

Hope you enjoy it!

What I am not

I am not in any way a professional biologist or a high-level whale specialist. I have done my best to research thoroughly, but I am just a guy who loves whales with almost three years of biology studies at university.

Johan

I’d love to hear from you

If you have any feedback, good or bad, feel free to send me an email. I will make sure to get back to you, and maybe your feedback will be implemented on the site.

The email is also open for just discussing anything whale-related, so feel free to share your own whale-passion!

Ready to dive in?

Start at the very beginning with Module 1, or pick any lesson that catches your eye.

See all lessons