Solve, create, share and talk about jigsaw puzzles

Comparative Embryo Development

Bookmarked Bookmark Solve this jigsaw puzzle later
ShareShare with your friends
ReportReport as inappropriate
12 pieces
51 solves
Solve puzzle

Thanks for sharing. Here is your html-code:

Why are you reporting this puzzle?

It's fascinating to compare fetal development of snakes, chickens, bats, hogs and humans. The early similarities are interesting. The study of neoteny shows how embryo development corresponds with early evolution.
Why this advertisement?


Please sign in to comment. Don't have a profile? Join now! Joining is absolutely free and no personal information is required.


Calling fetal development a theory is like calling evolution a theory. They once were theories, but are now proven scientific facts. All scientific knowledge was theory at one time until proven.

Any fool can post something on the internet. Wikipedia is not the be-all and end-all of knowledge. It has a lot of mistakes because the information can be posted or changed by anyone.



This is not a theory. This chart is a statement of facts.


Many years ago Haeckel's theory, as reflected in the chart above, was widely discredited.


You mean I've could have been a fruit bat :(

Someone has to say it, "ontogeny recapitulates phylogeny"


Very interesting. I agree with Bubble....we are all related


Good one!


Yep, we're all related at the end of the day, or should I say the beginning. ♪♥♥♫

Thank you.

Why this advertisement?