They’re known as “living fossils”. For over 450 million years, horseshoe crabs have been an ecologically vital part of our planet. They’re one of the few surviving species on Earth dating back to the dinosaurs. At NASA’s Kennedy Space Center in Florida, the American horseshoe crab (Limulus polyphemus) is one of more than 1,500 types […]
Posted on
April 22, 2025
Sign up for our newsletter:
Categories
9
1
5
40
5
2
2
1
330
2
4
336
12
20
1
25
1
1
1
3
1
106
2
14
1
4
1
7
51
614
10
11
287
140
13
6
1
23
24
3
2
2
18
1
2
1
254
52
31
1
3
15
117
1
10
1
1
6
13
340
1
4
10
4
215
12
2
1
11
1
29
1
26
15
1
188
1
166
1
9
1
4
2
15
1
6
93
2
8
3
50
3
2
14
3
1
1
1
41
205
1
10
131
6
18
29
17
1
2
149
3
377
3
1
4
1
1
2
10
25
31
64
37
18
1
18
81
1
25
29
41
10
20
15
43
6
2
1
350
4
14
103
1
42
1
2
153
6
1
1
16
100
101
1
1
3
38
4
2
57
1
10
3
3
189
134
10
9
1
1
1
11
5
6
10
3
1
11
35
22
2
Blog Posts
Glowing Views from the Space Station
May 8, 2026