Is A Chicken a Dirac Limit of a Dinosaur?

This paper has a lovely line in its concluding section: "In such a cartoon description, a chicken is a Dirac limit of a tyrannosaur, in which many of its genetic parameters tend to zero."

(Tip of the cap to Lior Pachter.)

Valentine's Day and Taking Limits

Here is an SMBC Comics with a Valentine's twist.

Rectangling the Circle

In Steve Strogatz's latest article in The New York Times, he discusses limits and presents a nice proof that the area of a circle is π*r^2, where r is the radius of the circle. (The proof that I saw in calculus was with an integral, but this one in Strogatz's article is much more clever and insightful.)