Why Are These Single-Celled Organisms So Large?

The video explores foraminifera, single-celled organisms known for their fossilized shells that record Earth's history. It highlights their diversity, size, and survival strategies, particularly in nutrient-poor environments. Larger foraminifera have evolved to house algal symbionts, aiding their growth. Despite facing mass extinctions, they repeatedly re-emerge, showcasing resilience. The video emphasizes the evolutionary cycle and adaptability of these organisms.

What are foraminifera and how do they spend their lives?

Why are foraminifera fossils significant in understanding Earth's history?

What adaptations allow larger foraminifera to thrive in nutrient-poor environments?

How do larger foraminifera reproduce differently compared to smaller species?

What challenges do larger foraminifera face during mass extinctions?

In what ways do smaller foraminifera demonstrate adaptability compared to larger ones?

What does the fossil record of foraminifera reveal about their evolutionary history?