Mammals Vs. Dinos- Early Mammalian Life Span

by Moin Uddin Ahmed Tipu

On the Science Channel’s “Mammals vs. Dinos,” comparisons are made between the lifespan of dinosaurs and mammals during the Cretaceous. Mammals had much shorter life spans, but reproduced rapidly giving them the evolutionary edge over dinosaurs.

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michelle richter March 4, 2009 - 12:23 AM


gigglepox June 23, 2009 - 3:15 AM

hahaha dinersaurs

kingkong8974 June 21, 2010 - 7:34 AM

It means those who reproduce more often will get mutations more often.
It didn't literally mean shorter lives.
In other words things with shorter lives tend to reproduce faster. such as bacteria and rats.

Cameron Scates July 12, 2010 - 12:20 AM

dinosaurs and mammals appeared at the same time but dinosaurs took off and grew and mammals stayed small

imslimkatie April 5, 2011 - 12:50 AM

What was the name of that mammal in the video?

Quentin Lennox October 5, 2013 - 1:38 PM

still true xD

oscar touza October 31, 2013 - 3:18 AM

It looks like marsupial mostly cause they live in that region

oscar touza October 31, 2013 - 3:18 AM

Of the world

Killerwhale6011 April 19, 2017 - 7:39 PM


Dylan Hooton August 4, 2018 - 9:57 AM

What species of mammal is in this video?