scorecardAnd now for today's oceanography quiz...
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And now for today's oceanography quiz...

And now for today's oceanography quiz...
TravelTravel2 min read

All right, beach buffs, it's time to measure your oceanography knowledge.

The following things were observed on a Massachusetts beach in the northeastern US in the third week in June.

First, a gelatinous mass:

What is it?

Second, a track of some kind, about eight inches wide:

What made it?

Answers below.

As you contemplate, here's how to measure yourself:

0 correct answers: Normal person

1 correct answer: Impressive!

2 correct answers: Jacques Cousteau

ANSWERS:

The gelatinous mass, I am pretty sure, after much Googling, is a "squid egg mop." Here's another picture of one. Female squids die after they make them. Male squids hang out a bit longer, then they die, too.

The track, I am quite sure, also after much Googling, was made by a horseshoe crab(s). They apparently ascend the beach around this time of year to lay eggs, which seagulls and other birds then feast on:

During the breeding season, horseshoe crabs migrate to shallow coastal waters. A male selects a female and clings to her back. The female digs a hole in the sand and lays her eggs while the male fertilizes them. The female can lay between 60,000 and 120,000 eggs in batches of a few thousand at a time. The eggs take about two weeks to hatch; shore birds eat many of them before they hatch. The larvae molt six times during the first year.


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