A new photo of the tadpoles in the pond shows a dramatic growth in their size and an equal and opposite decrease in their numbers.
July 24, 2011
July 20, 2011
To be fair some of the number decrease might be the result of dispersion. You can use the jar impression to judge the growth of the Tadpoles.
Semantic aside: Tadpoles and Polliwogs are two names for the frog phase between spawn and frog. Tadpole is more commonly used in the USA and polliwog is more common in the UK. The Spanish word in Mexico is renacuajo.