Study
The origin of ambergris
Clarke, Robert
Latin American Journal of Aquatic Mammals, 2006
Ambergris masses were examined where they occur in the sperm whale gut, drawing on direct observation of large numbers of whales processed during commercial whaling, and their composition, position and relationship to squid beak accumulation described.
- Studied in
- Physeter macrocephalus
- Sample size
- ambergris masses recovered from whaling catches and examined in situ
Ambergris forms in the rectum, not the stomach, as a concretion around accumulated indigestible squid beaks bound in faecal material. It is found in a small minority of whales. Large masses can obstruct the gut and may be fatal; smaller ones are voided.
What it means
The authors' reading, and ours. Where they differ, that difference is the point.
How the authors put it
Ambergris is an intestinal concretion associated with squid beak accumulation, passed with faeces or released when a blocked whale dies.
How NatureHQ reads it
This settles a question people genuinely ask, and the answer is neither of the two circulating versions. It is not vomit — it forms at the far end of the gut, not the stomach. Nor is it simply faeces, though it leaves the same way: it is a concretion built around the sharp squid beaks the whale cannot digest or regurgitate, which is a rather good explanation for why an animal eating thousands of beaked cephalopods would need such a thing at all. The floating masses found on beaches have then spent years at sea oxidising, which is where the smell perfumers value comes from.
- Based on whaling-era material, which cannot be replicated.
- Ambergris occurs in a small minority of whales, so sampling is opportunistic.
- The chemistry of maturation at sea is described elsewhere and only summarised here.
What this study is used for on NatureHQ
One study can inform several subjects. Here is everywhere this one is cited.
Published by: University press journalsPublished in a university press journal.
This reference was resolved automatically against Crossref on 2026-08-11.
NatureHQ summarises research in its own words and does not reproduce published text. Reviewed 2026-08-11.