Author: corpusl

Breakthrough Research on Cetacean Intelligence

This month, a paper was published in Nature Ecology & Evolution that was of immense importance to this website. In this post I will only comment on the paper itself, but I expect its data and supplementary files to be

Recent Findings on Octopuses, Dinosaurs, and Galactic Empires

Paths to the rise of intelligence are of general interest to us. The paucity of direct testing on cetaceans makes the topic of peculiar interest to this website. How Clever are Octopuses? It’s more difficult to gauge the intelligence of

The Genetics of Whale Brain Expansion: Amended Post

What a Mess A paper that purports to show that more social cetaceans are smarter actually proves the opposite, and my first analysis of it contained two important errors. My first mistake was due to difficulties with reading files on

Does Eating Fruit Lead Brain Evolution?

There has been a dearth of important academic papers directly pertaining to cetacean intelligence over these past few months. Today I post my much delayed analysis of a significant paper on primate intelligence. It was published in Nature Ecology &

Neanderthal Intelligence and the Sperm Whale Brain

One of the few things we know about the internal organisation of the sperm whale brain is its cerebellar quotient (CQ). That information would be insignificant did it not place this species brain in two unique categories. In all other other cetaceans,

Legal Aspects of Personhood: a Closer Look at the African Elephant

Considering how much evidence that I present for the possibility that sperm whales are our peers, it might come as a surprise to learn that I have been against every attempt I’ve seen, to date, to extend the legal definition of

Manipulation Complexity and the Intelligence of Sea Otters

Last year a paper was published by Sandra et al that allowed us to connect primate intelligence with manipulation complexity. Of particular interest to me, was that it indicated possibilities to measure the intelligence of non-primates. Unfortunately, connecting this work to cetaceans would be

The Scale of Primate Intelligence

This post replaces an early one that contained several errors. Its purpose is to explain my Primate IQ Scale. It also incorporates data from an important 2016 paper by Sandra et al, to it. An Introduction Deaner et al. 2006, were the first to establish

Does the Mirror Test Reflect Self-awareness?

The Mirror test of Self-Recognition (MSR) has been the gold standard in the quest to find the self-aware. Unfortunately, only a handful of species have ever passed it. Some scientists have been surprised that the subject of their research fail, as their

Battle for the Oceans

Nature, red in tooth and claw Alfred Lord Tennyson On land, we have a very good understanding of how the most intelligent nonhuman animals live. By contrast, our understanding of the same in the sea is very poor. Nature documentaries