Lab Lately

Nothing like a good case of ringworm to make you aware of literally every itchy part on your body

You are extraordinary

One of a kind and yet

Millions of ones

Ever changing

You are the heartbreak

And the heartbeat

You are the master

And the student

You are evolution

And stability

You are the life

And the spark

And the answer

And the question

And in the times that you feel lost

Please remember all of these things

That make you

Extraordinary

The Summer Games are here, so let’s meet the gold medal champion for fastest shark in the sea: the shortfin mako shark (Isurus oxyrinchus)! This agile predator fish is one of the world’s fastest swimmers, able to reach a top speed of over 40 mph (64.3 kmh). For perspective, the current 100m freestyle world record holder swam at an overall speed of 4.7 mph (2.9 km/h). A model of this shark can be found in the Museum's Hall of Biodiversity.

Want to learn more? Become a Museum Member today! Plus, use promo code GAMES24 and we’ll include a FREE, limited-edition Summer Games tote bag.

Photo:  Alison Kock, CC BY-NC 4.0, iNaturalist

Let's learn about the Babesia parasite!

Caused by infected ticks

Leads to anemia & low platelets

Testing: thin & thick smears, morphology, parasitemia levels, PCR

Treatment depends on severity (ranges from antiprotozoal meds or exchange transfusion)

Ring-like formation in the RBCs = Babesia parasite! (Very similar morphology to Malaria)

Some of you may be familiar with model organisms in biology but even so, you may think about mice, rabbits or flies rather than ctenophores. The whole purpose of having a model organism is to be able to understand particular biological functions/processes by using an organism that can be maintained easily, has a relatively short generation time and has its genome sequenced (this allows us to really understand their genetic makeup). Since this species of ctenophore (Mnemiopsis leidyi) has had its genome sequenced it allows us to identify key genes/proteins and try to determine their function.

The work I am currently doing for my project is focused on understanding the origin of the nervous system.

There's been a long standing debate amongst scientists over which species of animal first diverged from all other metazoans whether it be sponges or ctenophores. For a long time it has been thought that sponges are the sister group to all metazoans, although more recently studies have suggested that ctenophores are. Sponges are really simple animals that lack nervous systems, whereas ctenophores are more complex and have a nervous system. If ctenophores are then in fact found to be the sister group to all other metazoans, it poses the questions about whether the complex structures such as neurons and synapses evolved once or multiple times independently?

If you check you can see a diagram showing what I mean by the "sister group" to all metazoans. The first pic identifies sponges as the sister group, but with more analysis on a molecular basis, the 3rd pic could be possible.

Since most of the studies on neurons and nervous systems more generally are focused on metazoans, the work at this lab uses ctenophores to understand more about their complex biology with the aim of understanding the origins of neurons.

Teachers: Earn graduate credit and advance your career in six weeks with our flexible online courses! Connect with the Museum’s scientists, labs, exhibitions, and specimens. You can choose from a variety of courses ranging from Marine Biology and the Solar System to Climate Change and Virology. The courses are asynchronous, providing participants with the flexibility to complete weekly activities at their own pace—and can be taken anywhere at any time! Subject to school/district approval, courses may be used toward professional development, salary advancement, and recertification. Sign up for our summer session today—classes start July 8!

Photo: A. Keding / © AMNH

Wake up babe new fish dropped

Just found out about the weirdest shark ever

Prickly dogfish

It shifts

Grief

I don’t know how or when

But at some point

The happy memories

Become more of a comfort

Than a pain

Not every day

And not all the time

But some days

Grief shifts