I went through the Natural History Museum exhibits before and after photographing the gharials. They had an arthropod exhibit which was quite good. It included a fake kitchen that you walk into. In the kitchen, they had labels and fake bugs in various places. For example, you look up at a cabinet and there are giant models of those little beetles that like to get into your flour.
There’s also the hall filled with plesiosaurs and icthyosaurs, some of which were discovered by Mary Anning herself. Fun fact, the tongue twister “She sells seashells” is about her.
Unfortunately, this hall was not designed for exhibits (at least, not using modern ideas). There are giant skylights with light streaming down onto cases with highly reflective glass. Several exhibit halls were like this, and you could see the damage the UV has done over the years to objects more susceptible to it (like taxidermied specimens, which were badly faded).
In their bird hall, they have a case of comparative anatomy, which was a great source for pictures for teaching.
There are actually a good number of modern birds with claws. Some have true claws and others have modified carpal or metacarpal bones with horn casings (they’re called spurs). But aside from which bone make the core, they’re built exactly like a true claw. Possible example of a “frame shift”?
In bird evolution, when you look at a phylogenetic tree, a bird’s hand has the 1st, 2nd, and 3rd digits. But when you look at a chick developing in the egg, it’s the 2nd, 3rd, and 4th digits. A “frame shift”, wherein the Hox genes that activiate during development scoot over one digit and make them develop into a shape like their neighboring digit is the mechanism for this.
And their prehistoric & modern mammal area was good as well. It included the usual suspects as well as some less famous ones.
They also have a “treasures” room, where they display some of their most highly prized objects. One of them is a first edition copy of On the Origin of Species. UI also has one of those, but the only time I’ve seen them display it is on Darwin Day. Something as precious as that you really don’t want to expose to UV all the time. The room where the NHM keeps it has no windows and not much light.
One of their exhibits was a series of panels on various bodies in the Solar System. At first I thought it was just planets, which made the fact that Pluto was “out of order” hilarious.