Back to Africa Check

Yes, pandemic lockdown helped pink dolphins return to waters between Hong Kong and Macau

“The return of the pink dolphin,” reads a graphic doing the rounds on Instagram in South Africa. It shows a photo of an undeniably pink dolphin lifting its head out of the water.

“Due to the lockdown in March, suspended ferry services between Hong Kong and Macau resulted in a 30% rise in sightings of this endangered species.”

Facebook’s fact-checking system has flagged the graphic as possibly false. Is there any truth to this heart-warming claim?




Indo-Pacific humpback dolphins

The photo shows a dolphin from a species often referred to as pink dolphins. They are also known as Chinese white dolphins and Indo-Pacific humpback dolphins. Their species name is Sousa chinensis.

The largest population of Chinese white dolphins is found in the coastal waters between Hong Kong and Macau on the south coast of China.

“There are only 32 individuals in Hong Kong,” says the Hong Kong chapter of the World Wide Fund for Nature (WWF). The population is stable “but threats continue to be serious and are mounting”.

The species is listed as “vulnerable” on the International Union for Conservation of Nature’s Red List of Threatened Species.

The WWF says that over the past few years the number of young Chinese white dolphins has worryingly decreased in Hong Kong waters.

Threats to the species include overfishing, water pollution, heavy marine traffic and coastal development.

Ferry lockdown allows dolphins to return

In October 2020 the Hong Kong Free Press website reported that pink dolphins were migrating back to the waters between Hong Kong and Macau, after ferry traffic between the states was halted by the coronavirus lockdown.

An AFP news agency video, posted on Twitter, shows the dolphins swimming, feeding and socialising near Hong Kong and Macau.


VIDEO: Rare pink dolphins are enjoying a comeback in the waters between Hong Kong and Macau after the coronavirus pandemic halted ferries, but scientists remain deeply concerned about their long-term survival in such a busy thoroughfare.

— AFP News Agency (@AFP) October 16, 2020


South African news site eNCA also reported on the migration, saying that while the dolphins’ numbers had declined by 70% to 80% in the past 15 years, “their numbers ... bounced back” after the pandemic halted human activity. 

Researchers are now able to study how the mammals “have adapted to the unprecedented quiet”. 

Dr Lindsay Porter, a Hong Kong-based marine scientist, told eNCA that the number of pink dolphins on the coast of Hong Kong and Macau had increased by about a third since March 2021.

Republish our content for free

We believe that everyone needs the facts.

You can republish the text of this article free of charge, both online and in print. However, we ask that you pay attention to these simple guidelines. In a nutshell:

1. Do not include images, as in most cases we do not own the copyright.

2. Please do not edit the article.

3. Make sure you credit "Africa Check" in the byline and don't forget to mention that the article was originally published on

For publishers: what to do if your post is rated false

A fact-checker has rated your Facebook or Instagram post as “false”, “altered”, “partly false” or “missing context”. This could have serious consequences. What do you do?

Click on our guide for the steps you should follow.

Publishers guide

Africa Check teams up with Facebook

Africa Check is a partner in Meta's third-party fact-checking programme to help stop the spread of false information on social media.

The content we rate as “false” will be downgraded on Facebook and Instagram. This means fewer people will see it.

You can also help identify false information on Facebook. This guide explains how.

Add new comment

Restricted HTML

  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h4 id> <h5 id> <h6 id>
  • Lines and paragraphs break automatically.
  • Web page addresses and email addresses turn into links automatically.
limit: 600 characters

Want to keep reading our fact-checks?

We will never charge you for verified, reliable information. Help us keep it that way by supporting our work.

Become a newsletter subscriber

Support independent fact-checking in Africa.