AI Insight
Researchers from the University of Tartu have discovered that marine animals first began colonizing empty mollusk shells as habitats approximately 470 million years ago. This finding represents a significant ecological shift in ancient oceans, marking the emergence of a new ecological niche. The development was an important step in the evolution of marine ecosystems toward their modern form.
Why it matters
Understanding how ancient marine ecosystems evolved helps scientists comprehend the development of ecological complexity in modern oceans. This research provides insights into how organisms adapt to create and exploit new habitats, a process that remains relevant for understanding current marine biodiversity and ecosystem dynamics.
Understand the Science
An international study led by researchers from the University of Tartu shows that approximately 470 million years ago, a significant ecological change took place in the world’s oceans: For the first time, the interiors of empty mollusk shells began to be used as habitats. This marked the emergence of a new ecological niche and was a crucial step in the development of a marine ecosystem similar to today’s.
Source: Marine animals first colonized empty seashells about 470 million years ago