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diff --git a/challenge-131/jo-37/perl/ch-1.pl b/challenge-131/jo-37/perl/ch-1.pl
new file mode 100755
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+++ b/challenge-131/jo-37/perl/ch-1.pl
@@ -0,0 +1,72 @@
+#!/usr/bin/perl -s
+
+use v5.16;
+use Test2::V0;
+use List::Util 'reduce';
+use Data::Dump;
+use experimental qw(signatures postderef);
+
+our ($tests, $examples);
+
+run_tests() if $tests || $examples;	# does not return
+
+die <<EOS unless @ARGV;
+usage: $0 [-examples] [-tests] [num ...]
+
+-examples
+    run the examples from the challenge
+ 
+-tests
+    run some tests
+
+num ...
+    numbers
+    
+
+EOS
+
+
+### Input and Output
+dd @{consecutive_arrays(@ARGV)};
+
+
+### Implementation
+
+sub consecutive_arrays($f, @a) {
+    reduce {
+        if ($b == $a->[-1][-1] + 1) {
+            push $a->[-1]->@*, $b;
+        } else {
+            push @$a, [$b];
+        }
+        $a;
+    } [[$f]], @a;
+}
+
+
+### Examples and tests
+
+sub run_tests {
+    SKIP: {
+        skip "examples" unless $examples;
+
+        is consecutive_arrays(1, 2, 3, 6, 7, 8, 9),
+            [[1, 2, 3], [6, 7, 8, 9]], 'example 1';
+        is consecutive_arrays(11, 12, 14, 17, 18, 19),
+            [[11, 12], [14], [17, 18, 19]], 'example 2';
+        is consecutive_arrays(2, 4, 6, 8),
+            [[2], [4], [6], [8]], 'example 3';
+        is consecutive_arrays(1, 2, 3, 4, 5),
+            [[1, 2, 3, 4, 5]], 'example 4';
+    }
+
+    SKIP: {
+        skip "tests" unless $tests;
+
+        is consecutive_arrays(1),
+            [[1]], 'single value';
+	}
+
+    done_testing;
+    exit;
+}